Home / 13,132.75-18,123.20-8,417.03

Finding the Fourth Proportional to 13,132.75, 18,123.20 and 8,417.03

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Solution

The fourth proportional to 13,132.75, 18,123.20 and 8,417.03 is: 11,615.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132.75 : 18,123.20 = 8,417.03 : x
  2. Step 2: Convert to fraction form
    13,132.75/18,123.20 = 8,417.03/x
  3. Step 3: Cross multiply
    13,132.75x = 18,123.20 × 8,417.03
  4. Step 4: Simplify right side
    13,132.75x = 152,543,521.32
  5. Step 5: Solve for x
    x = 152,543,521.32/13,132.75
  6. Step 6: Final answer
    x = 11,615.50

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Half scale
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Double scale
Find fourth proportional to 13,133.75, 18,124.58 and 8,418.03
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.