Home / 8,318.79-11,477.17-5,487.57

Finding the Fourth Proportional to 8,318.79, 11,477.17 and 5,487.57

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Solution

The fourth proportional to 8,318.79, 11,477.17 and 5,487.57 is: 7,571.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.79 : 11,477.17 = 5,487.57 : x
  2. Step 2: Convert to fraction form
    8,318.79/11,477.17 = 5,487.57/x
  3. Step 3: Cross multiply
    8,318.79x = 11,477.17 × 5,487.57
  4. Step 4: Simplify right side
    8,318.79x = 62,981,773.78
  5. Step 5: Solve for x
    x = 62,981,773.78/8,318.79
  6. Step 6: Final answer
    x = 7,571.03

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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.