Home / 18,427.26-25,429.23-11,254.71

Finding the Fourth Proportional to 18,427.26, 25,429.23 and 11,254.71

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Solution

The fourth proportional to 18,427.26, 25,429.23 and 11,254.71 is: 15,531.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,427.26 : 25,429.23 = 11,254.71 : x
  2. Step 2: Convert to fraction form
    18,427.26/25,429.23 = 11,254.71/x
  3. Step 3: Cross multiply
    18,427.26x = 25,429.23 × 11,254.71
  4. Step 4: Simplify right side
    18,427.26x = 286,198,609.17
  5. Step 5: Solve for x
    x = 286,198,609.17/18,427.26
  6. Step 6: Final answer
    x = 15,531.26

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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.