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Finding the Fourth Proportional to 8,908.65, 12,294 and 4,929.93

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Solution

The fourth proportional to 8,908.65, 12,294 and 4,929.93 is: 6,803.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908.65 : 12,294 = 4,929.93 : x
  2. Step 2: Convert to fraction form
    8,908.65/12,294 = 4,929.93/x
  3. Step 3: Cross multiply
    8,908.65x = 12,294 × 4,929.93
  4. Step 4: Simplify right side
    8,908.65x = 60,608,559.42
  5. Step 5: Solve for x
    x = 60,608,559.42/8,908.65
  6. Step 6: Final answer
    x = 6,803.34

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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.