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Finding the Fourth Proportional to 12,605.92, 18,908.87 and 4,397.92

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Solution

The fourth proportional to 12,605.92, 18,908.87 and 4,397.92 is: 6,596.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,605.92 : 18,908.87 = 4,397.92 : x
  2. Step 2: Convert to fraction form
    12,605.92/18,908.87 = 4,397.92/x
  3. Step 3: Cross multiply
    12,605.92x = 18,908.87 × 4,397.92
  4. Step 4: Simplify right side
    12,605.92x = 83,159,628.29
  5. Step 5: Solve for x
    x = 83,159,628.29/12,605.92
  6. Step 6: Final answer
    x = 6,596.87

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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.