Home / 15,624.86-23,439.11-5,490.13

Finding the Fourth Proportional to 15,624.86, 23,439.11 and 5,490.13

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Solution

The fourth proportional to 15,624.86, 23,439.11 and 5,490.13 is: 8,235.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,624.86 : 23,439.11 = 5,490.13 : x
  2. Step 2: Convert to fraction form
    15,624.86/23,439.11 = 5,490.13/x
  3. Step 3: Cross multiply
    15,624.86x = 23,439.11 × 5,490.13
  4. Step 4: Simplify right side
    15,624.86x = 128,683,760.98
  5. Step 5: Solve for x
    x = 128,683,760.98/15,624.86
  6. Step 6: Final answer
    x = 8,235.83

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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.