Home / 15,065.52-20,790.56-8,351.29

Finding the Fourth Proportional to 15,065.52, 20,790.56 and 8,351.29

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Solution

The fourth proportional to 15,065.52, 20,790.56 and 8,351.29 is: 11,524.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,065.52 : 20,790.56 = 8,351.29 : x
  2. Step 2: Convert to fraction form
    15,065.52/20,790.56 = 8,351.29/x
  3. Step 3: Cross multiply
    15,065.52x = 20,790.56 × 8,351.29
  4. Step 4: Simplify right side
    15,065.52x = 173,627,995.82
  5. Step 5: Solve for x
    x = 173,627,995.82/15,065.52
  6. Step 6: Final answer
    x = 11,524.86

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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.