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Finding the Fourth Proportional to 8,878.30, 12,253.50 and 5,293.71

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Solution

The fourth proportional to 8,878.30, 12,253.50 and 5,293.71 is: 7,306.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.30 : 12,253.50 = 5,293.71 : x
  2. Step 2: Convert to fraction form
    8,878.30/12,253.50 = 5,293.71/x
  3. Step 3: Cross multiply
    8,878.30x = 12,253.50 × 5,293.71
  4. Step 4: Simplify right side
    8,878.30x = 64,866,475.49
  5. Step 5: Solve for x
    x = 64,866,475.49/8,878.30
  6. Step 6: Final answer
    x = 7,306.18

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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.