Home / 13,114.82-18,098.50-7,146.54

Finding the Fourth Proportional to 13,114.82, 18,098.50 and 7,146.54

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Solution

The fourth proportional to 13,114.82, 18,098.50 and 7,146.54 is: 9,862.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,114.82 : 18,098.50 = 7,146.54 : x
  2. Step 2: Convert to fraction form
    13,114.82/18,098.50 = 7,146.54/x
  3. Step 3: Cross multiply
    13,114.82x = 18,098.50 × 7,146.54
  4. Step 4: Simplify right side
    13,114.82x = 129,341,654.19
  5. Step 5: Solve for x
    x = 129,341,654.19/13,114.82
  6. Step 6: Final answer
    x = 9,862.25

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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.