Home / 15,001.28-22,481.40-6,986.72

Finding the Fourth Proportional to 15,001.28, 22,481.40 and 6,986.72

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Solution

The fourth proportional to 15,001.28, 22,481.40 and 6,986.72 is: 10,470.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,001.28 : 22,481.40 = 6,986.72 : x
  2. Step 2: Convert to fraction form
    15,001.28/22,481.40 = 6,986.72/x
  3. Step 3: Cross multiply
    15,001.28x = 22,481.40 × 6,986.72
  4. Step 4: Simplify right side
    15,001.28x = 157,071,247.01
  5. Step 5: Solve for x
    x = 157,071,247.01/15,001.28
  6. Step 6: Final answer
    x = 10,470.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.