Home / 18,135.18-25,029.30-11,065.71

Finding the Fourth Proportional to 18,135.18, 25,029.30 and 11,065.71

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Solution

The fourth proportional to 18,135.18, 25,029.30 and 11,065.71 is: 15,272.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,135.18 : 25,029.30 = 11,065.71 : x
  2. Step 2: Convert to fraction form
    18,135.18/25,029.30 = 11,065.71/x
  3. Step 3: Cross multiply
    18,135.18x = 25,029.30 × 11,065.71
  4. Step 4: Simplify right side
    18,135.18x = 276,966,975.30
  5. Step 5: Solve for x
    x = 276,966,975.30/18,135.18
  6. Step 6: Final answer
    x = 15,272.36

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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.