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Finding the Fourth Proportional to 21,956, 32,934 and 6,373.76

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Solution

The fourth proportional to 21,956, 32,934 and 6,373.76 is: 9,560.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,956 : 32,934 = 6,373.76 : x
  2. Step 2: Convert to fraction form
    21,956/32,934 = 6,373.76/x
  3. Step 3: Cross multiply
    21,956x = 32,934 × 6,373.76
  4. Step 4: Simplify right side
    21,956x = 209,913,411.84
  5. Step 5: Solve for x
    x = 209,913,411.84/21,956
  6. Step 6: Final answer
    x = 9,560.64

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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.