Home / 11,287.20-15,568.56-7,937.04

Finding the Fourth Proportional to 11,287.20, 15,568.56 and 7,937.04

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Solution

The fourth proportional to 11,287.20, 15,568.56 and 7,937.04 is: 10,947.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,287.20 : 15,568.56 = 7,937.04 : x
  2. Step 2: Convert to fraction form
    11,287.20/15,568.56 = 7,937.04/x
  3. Step 3: Cross multiply
    11,287.20x = 15,568.56 × 7,937.04
  4. Step 4: Simplify right side
    11,287.20x = 123,568,283.46
  5. Step 5: Solve for x
    x = 123,568,283.46/11,287.20
  6. Step 6: Final answer
    x = 10,947.65

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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.