Home / 18,245.40-25,178.90-11,073.26

Finding the Fourth Proportional to 18,245.40, 25,178.90 and 11,073.26

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Solution

The fourth proportional to 18,245.40, 25,178.90 and 11,073.26 is: 15,281.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.40 : 25,178.90 = 11,073.26 : x
  2. Step 2: Convert to fraction form
    18,245.40/25,178.90 = 11,073.26/x
  3. Step 3: Cross multiply
    18,245.40x = 25,178.90 × 11,073.26
  4. Step 4: Simplify right side
    18,245.40x = 278,812,324.95
  5. Step 5: Solve for x
    x = 278,812,324.95/18,245.40
  6. Step 6: Final answer
    x = 15,281.24

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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.