Home / 15,657.30-23,489.60-5,127.29

Finding the Fourth Proportional to 15,657.30, 23,489.60 and 5,127.29

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Solution

The fourth proportional to 15,657.30, 23,489.60 and 5,127.29 is: 7,692.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,657.30 : 23,489.60 = 5,127.29 : x
  2. Step 2: Convert to fraction form
    15,657.30/23,489.60 = 5,127.29/x
  3. Step 3: Cross multiply
    15,657.30x = 23,489.60 × 5,127.29
  4. Step 4: Simplify right side
    15,657.30x = 120,437,848.10
  5. Step 5: Solve for x
    x = 120,437,848.10/15,657.30
  6. Step 6: Final answer
    x = 7,692.12

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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.