Home / 8,318.60-11,476.92-5,487.38

Finding the Fourth Proportional to 8,318.60, 11,476.92 and 5,487.38

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Solution

The fourth proportional to 8,318.60, 11,476.92 and 5,487.38 is: 7,570.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.60 : 11,476.92 = 5,487.38 : x
  2. Step 2: Convert to fraction form
    8,318.60/11,476.92 = 5,487.38/x
  3. Step 3: Cross multiply
    8,318.60x = 11,476.92 × 5,487.38
  4. Step 4: Simplify right side
    8,318.60x = 62,978,222.52
  5. Step 5: Solve for x
    x = 62,978,222.52/8,318.60
  6. Step 6: Final answer
    x = 7,570.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.