Home / 13,049.49-18,000.77-8,328.45

Finding the Fourth Proportional to 13,049.49, 18,000.77 and 8,328.45

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Solution

The fourth proportional to 13,049.49, 18,000.77 and 8,328.45 is: 11,488.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,049.49 : 18,000.77 = 8,328.45 : x
  2. Step 2: Convert to fraction form
    13,049.49/18,000.77 = 8,328.45/x
  3. Step 3: Cross multiply
    13,049.49x = 18,000.77 × 8,328.45
  4. Step 4: Simplify right side
    13,049.49x = 149,918,471.26
  5. Step 5: Solve for x
    x = 149,918,471.26/13,049.49
  6. Step 6: Final answer
    x = 11,488.45

Related Problems

Find fourth proportional to 6,524.75, 9,000.38 and 4,164.23
Half scale
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Double scale
Find fourth proportional to 13,050.49, 18,002.14 and 8,329.45
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.