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Finding the Fourth Proportional to 8,956.59, 12,361.46 and 6,447.01

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Solution

The fourth proportional to 8,956.59, 12,361.46 and 6,447.01 is: 8,897.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,956.59 : 12,361.46 = 6,447.01 : x
  2. Step 2: Convert to fraction form
    8,956.59/12,361.46 = 6,447.01/x
  3. Step 3: Cross multiply
    8,956.59x = 12,361.46 × 6,447.01
  4. Step 4: Simplify right side
    8,956.59x = 79,694,456.23
  5. Step 5: Solve for x
    x = 79,694,456.23/8,956.59
  6. Step 6: Final answer
    x = 8,897.86

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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.