Home / 18,815.14-25,965.19-10,318.03

Finding the Fourth Proportional to 18,815.14, 25,965.19 and 10,318.03

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Solution

The fourth proportional to 18,815.14, 25,965.19 and 10,318.03 is: 14,239.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,815.14 : 25,965.19 = 10,318.03 : x
  2. Step 2: Convert to fraction form
    18,815.14/25,965.19 = 10,318.03/x
  3. Step 3: Cross multiply
    18,815.14x = 25,965.19 × 10,318.03
  4. Step 4: Simplify right side
    18,815.14x = 267,909,609.38
  5. Step 5: Solve for x
    x = 267,909,609.38/18,815.14
  6. Step 6: Final answer
    x = 14,239.04

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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.