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Finding the Fourth Proportional to 13,114.96, 18,098.93 and 7,146.92

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Solution

The fourth proportional to 13,114.96, 18,098.93 and 7,146.92 is: 9,862.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,114.96 : 18,098.93 = 7,146.92 : x
  2. Step 2: Convert to fraction form
    13,114.96/18,098.93 = 7,146.92/x
  3. Step 3: Cross multiply
    13,114.96x = 18,098.93 × 7,146.92
  4. Step 4: Simplify right side
    13,114.96x = 129,351,604.80
  5. Step 5: Solve for x
    x = 129,351,604.80/13,114.96
  6. Step 6: Final answer
    x = 9,862.91

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Double scale
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Similar ratio
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1.5x scale

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.