Home / 11,206.78-15,460.17-7,229.18

Finding the Fourth Proportional to 11,206.78, 15,460.17 and 7,229.18

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Solution

The fourth proportional to 11,206.78, 15,460.17 and 7,229.18 is: 9,972.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,206.78 : 15,460.17 = 7,229.18 : x
  2. Step 2: Convert to fraction form
    11,206.78/15,460.17 = 7,229.18/x
  3. Step 3: Cross multiply
    11,206.78x = 15,460.17 × 7,229.18
  4. Step 4: Simplify right side
    11,206.78x = 111,764,276.34
  5. Step 5: Solve for x
    x = 111,764,276.34/11,206.78
  6. Step 6: Final answer
    x = 9,972.91

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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.