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Finding the Fourth Proportional to 7,951.42, 11,868.13 and 7,017.29

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Solution

The fourth proportional to 7,951.42, 11,868.13 and 7,017.29 is: 10,473.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951.42 : 11,868.13 = 7,017.29 : x
  2. Step 2: Convert to fraction form
    7,951.42/11,868.13 = 7,017.29/x
  3. Step 3: Cross multiply
    7,951.42x = 11,868.13 × 7,017.29
  4. Step 4: Simplify right side
    7,951.42x = 83,282,109.97
  5. Step 5: Solve for x
    x = 83,282,109.97/7,951.42
  6. Step 6: Final answer
    x = 10,473.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.