Home / 18,180.76-25,089.30-11,470.72

Finding the Fourth Proportional to 18,180.76, 25,089.30 and 11,470.72

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Solution

The fourth proportional to 18,180.76, 25,089.30 and 11,470.72 is: 15,829.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,180.76 : 25,089.30 = 11,470.72 : x
  2. Step 2: Convert to fraction form
    18,180.76/25,089.30 = 11,470.72/x
  3. Step 3: Cross multiply
    18,180.76x = 25,089.30 × 11,470.72
  4. Step 4: Simplify right side
    18,180.76x = 287,792,335.30
  5. Step 5: Solve for x
    x = 287,792,335.30/18,180.76
  6. Step 6: Final answer
    x = 15,829.50

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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.