Home / 8,937.27-12,331.39-5,400.40

Finding the Fourth Proportional to 8,937.27, 12,331.39 and 5,400.40

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Solution

The fourth proportional to 8,937.27, 12,331.39 and 5,400.40 is: 7,451.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,937.27 : 12,331.39 = 5,400.40 : x
  2. Step 2: Convert to fraction form
    8,937.27/12,331.39 = 5,400.40/x
  3. Step 3: Cross multiply
    8,937.27x = 12,331.39 × 5,400.40
  4. Step 4: Simplify right side
    8,937.27x = 66,594,438.56
  5. Step 5: Solve for x
    x = 66,594,438.56/8,937.27
  6. Step 6: Final answer
    x = 7,451.32

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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.