Home / 13,049.24-18,000.42-8,328.20

Finding the Fourth Proportional to 13,049.24, 18,000.42 and 8,328.20

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Solution

The fourth proportional to 13,049.24, 18,000.42 and 8,328.20 is: 11,488.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,049.24 : 18,000.42 = 8,328.20 : x
  2. Step 2: Convert to fraction form
    13,049.24/18,000.42 = 8,328.20/x
  3. Step 3: Cross multiply
    13,049.24x = 18,000.42 × 8,328.20
  4. Step 4: Simplify right side
    13,049.24x = 149,911,097.84
  5. Step 5: Solve for x
    x = 149,911,097.84/13,049.24
  6. Step 6: Final answer
    x = 11,488.11

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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.