Home / 9,523.50-13,142.43-5,331.78

Finding the Fourth Proportional to 9,523.50, 13,142.43 and 5,331.78

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Solution

The fourth proportional to 9,523.50, 13,142.43 and 5,331.78 is: 7,357.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,523.50 : 13,142.43 = 5,331.78 : x
  2. Step 2: Convert to fraction form
    9,523.50/13,142.43 = 5,331.78/x
  3. Step 3: Cross multiply
    9,523.50x = 13,142.43 × 5,331.78
  4. Step 4: Simplify right side
    9,523.50x = 70,072,545.43
  5. Step 5: Solve for x
    x = 70,072,545.43/9,523.50
  6. Step 6: Final answer
    x = 7,357.86

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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.