Home / 15,705.18-23,515.56-13,712.04

Finding the Fourth Proportional to 15,705.18, 23,515.56 and 13,712.04

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Solution

The fourth proportional to 15,705.18, 23,515.56 and 13,712.04 is: 20,531.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,705.18 : 23,515.56 = 13,712.04 : x
  2. Step 2: Convert to fraction form
    15,705.18/23,515.56 = 13,712.04/x
  3. Step 3: Cross multiply
    15,705.18x = 23,515.56 × 13,712.04
  4. Step 4: Simplify right side
    15,705.18x = 322,446,299.34
  5. Step 5: Solve for x
    x = 322,446,299.34/15,705.18
  6. Step 6: Final answer
    x = 20,531.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.