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Finding the Fourth Proportional to 8,956.47, 13,432.96 and 8,511.95

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Solution

The fourth proportional to 8,956.47, 13,432.96 and 8,511.95 is: 12,766.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,956.47 : 13,432.96 = 8,511.95 : x
  2. Step 2: Convert to fraction form
    8,956.47/13,432.96 = 8,511.95/x
  3. Step 3: Cross multiply
    8,956.47x = 13,432.96 × 8,511.95
  4. Step 4: Simplify right side
    8,956.47x = 114,340,574.15
  5. Step 5: Solve for x
    x = 114,340,574.15/8,956.47
  6. Step 6: Final answer
    x = 12,766.25

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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.