Home / 13,114.80-18,098.46-7,146.45

Finding the Fourth Proportional to 13,114.80, 18,098.46 and 7,146.45

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Solution

The fourth proportional to 13,114.80, 18,098.46 and 7,146.45 is: 9,862.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,114.80 : 18,098.46 = 7,146.45 : x
  2. Step 2: Convert to fraction form
    13,114.80/18,098.46 = 7,146.45/x
  3. Step 3: Cross multiply
    13,114.80x = 18,098.46 × 7,146.45
  4. Step 4: Simplify right side
    13,114.80x = 129,339,739.47
  5. Step 5: Solve for x
    x = 129,339,739.47/13,114.80
  6. Step 6: Final answer
    x = 9,862.12

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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.