Home / 10,285.60-15,439.38-9,060.88

Finding the Fourth Proportional to 10,285.60, 15,439.38 and 9,060.88

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Solution

The fourth proportional to 10,285.60, 15,439.38 and 9,060.88 is: 13,600.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,285.60 : 15,439.38 = 9,060.88 : x
  2. Step 2: Convert to fraction form
    10,285.60/15,439.38 = 9,060.88/x
  3. Step 3: Cross multiply
    10,285.60x = 15,439.38 × 9,060.88
  4. Step 4: Simplify right side
    10,285.60x = 139,894,369.45
  5. Step 5: Solve for x
    x = 139,894,369.45/10,285.60
  6. Step 6: Final answer
    x = 13,600.99

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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.