Home / 8,331.12-12,498.84-2,487.78

Finding the Fourth Proportional to 8,331.12, 12,498.84 and 2,487.78

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Solution

The fourth proportional to 8,331.12, 12,498.84 and 2,487.78 is: 3,732.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,331.12 : 12,498.84 = 2,487.78 : x
  2. Step 2: Convert to fraction form
    8,331.12/12,498.84 = 2,487.78/x
  3. Step 3: Cross multiply
    8,331.12x = 12,498.84 × 2,487.78
  4. Step 4: Simplify right side
    8,331.12x = 31,094,364.18
  5. Step 5: Solve for x
    x = 31,094,364.18/8,331.12
  6. Step 6: Final answer
    x = 3,732.32

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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.