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Finding the Fourth Proportional to 8,968.97, 13,432.58 and 8,657.52

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Solution

The fourth proportional to 8,968.97, 13,432.58 and 8,657.52 is: 12,966.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,968.97 : 13,432.58 = 8,657.52 : x
  2. Step 2: Convert to fraction form
    8,968.97/13,432.58 = 8,657.52/x
  3. Step 3: Cross multiply
    8,968.97x = 13,432.58 × 8,657.52
  4. Step 4: Simplify right side
    8,968.97x = 116,292,786.71
  5. Step 5: Solve for x
    x = 116,292,786.71/8,968.97
  6. Step 6: Final answer
    x = 12,966.13

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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.