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Finding the Fourth Proportional to 10,604.79, 15,888.96 and 7,306.11

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Solution

The fourth proportional to 10,604.79, 15,888.96 and 7,306.11 is: 10,946.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,604.79 : 15,888.96 = 7,306.11 : x
  2. Step 2: Convert to fraction form
    10,604.79/15,888.96 = 7,306.11/x
  3. Step 3: Cross multiply
    10,604.79x = 15,888.96 × 7,306.11
  4. Step 4: Simplify right side
    10,604.79x = 116,086,489.55
  5. Step 5: Solve for x
    x = 116,086,489.55/10,604.79
  6. Step 6: Final answer
    x = 10,946.61

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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.