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Finding the Fourth Proportional to 8,951.52, 12,352.50 and 5,174.40

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Solution

The fourth proportional to 8,951.52, 12,352.50 and 5,174.40 is: 7,140.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,951.52 : 12,352.50 = 5,174.40 : x
  2. Step 2: Convert to fraction form
    8,951.52/12,352.50 = 5,174.40/x
  3. Step 3: Cross multiply
    8,951.52x = 12,352.50 × 5,174.40
  4. Step 4: Simplify right side
    8,951.52x = 63,916,776.00
  5. Step 5: Solve for x
    x = 63,916,776.00/8,951.52
  6. Step 6: Final answer
    x = 7,140.33

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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.