Home / 13,114.26-18,097.45-7,145.97

Finding the Fourth Proportional to 13,114.26, 18,097.45 and 7,145.97

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Solution

The fourth proportional to 13,114.26, 18,097.45 and 7,145.97 is: 9,861.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,114.26 : 18,097.45 = 7,145.97 : x
  2. Step 2: Convert to fraction form
    13,114.26/18,097.45 = 7,145.97/x
  3. Step 3: Cross multiply
    13,114.26x = 18,097.45 × 7,145.97
  4. Step 4: Simplify right side
    13,114.26x = 129,323,834.78
  5. Step 5: Solve for x
    x = 129,323,834.78/13,114.26
  6. Step 6: Final answer
    x = 9,861.31

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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.