Home / 18,775.62-25,909.59-11,226.15

Finding the Fourth Proportional to 18,775.62, 25,909.59 and 11,226.15

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Solution

The fourth proportional to 18,775.62, 25,909.59 and 11,226.15 is: 15,491.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,775.62 : 25,909.59 = 11,226.15 : x
  2. Step 2: Convert to fraction form
    18,775.62/25,909.59 = 11,226.15/x
  3. Step 3: Cross multiply
    18,775.62x = 25,909.59 × 11,226.15
  4. Step 4: Simplify right side
    18,775.62x = 290,864,943.78
  5. Step 5: Solve for x
    x = 290,864,943.78/18,775.62
  6. Step 6: Final answer
    x = 15,491.63

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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.