Home / 10,215.14-15,260.62-6,487.52

Finding the Fourth Proportional to 10,215.14, 15,260.62 and 6,487.52

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Solution

The fourth proportional to 10,215.14, 15,260.62 and 6,487.52 is: 9,691.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,215.14 : 15,260.62 = 6,487.52 : x
  2. Step 2: Convert to fraction form
    10,215.14/15,260.62 = 6,487.52/x
  3. Step 3: Cross multiply
    10,215.14x = 15,260.62 × 6,487.52
  4. Step 4: Simplify right side
    10,215.14x = 99,003,577.46
  5. Step 5: Solve for x
    x = 99,003,577.46/10,215.14
  6. Step 6: Final answer
    x = 9,691.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.