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Finding the Fourth Proportional to 8,627.32, 12,940.58 and 2,471.32

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Solution

The fourth proportional to 8,627.32, 12,940.58 and 2,471.32 is: 3,706.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,627.32 : 12,940.58 = 2,471.32 : x
  2. Step 2: Convert to fraction form
    8,627.32/12,940.58 = 2,471.32/x
  3. Step 3: Cross multiply
    8,627.32x = 12,940.58 × 2,471.32
  4. Step 4: Simplify right side
    8,627.32x = 31,980,314.17
  5. Step 5: Solve for x
    x = 31,980,314.17/8,627.32
  6. Step 6: Final answer
    x = 3,706.87

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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.