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Finding the Fourth Proportional to 8,929.31, 12,322.53 and 4,950.79

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Solution

The fourth proportional to 8,929.31, 12,322.53 and 4,950.79 is: 6,832.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,929.31 : 12,322.53 = 4,950.79 : x
  2. Step 2: Convert to fraction form
    8,929.31/12,322.53 = 4,950.79/x
  3. Step 3: Cross multiply
    8,929.31x = 12,322.53 × 4,950.79
  4. Step 4: Simplify right side
    8,929.31x = 61,006,227.49
  5. Step 5: Solve for x
    x = 61,006,227.49/8,929.31
  6. Step 6: Final answer
    x = 6,832.14

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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.