Home / 11,253.60-15,524.46-7,278.12

Finding the Fourth Proportional to 11,253.60, 15,524.46 and 7,278.12

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Solution

The fourth proportional to 11,253.60, 15,524.46 and 7,278.12 is: 10,040.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,253.60 : 15,524.46 = 7,278.12 : x
  2. Step 2: Convert to fraction form
    11,253.60/15,524.46 = 7,278.12/x
  3. Step 3: Cross multiply
    11,253.60x = 15,524.46 × 7,278.12
  4. Step 4: Simplify right side
    11,253.60x = 112,988,882.82
  5. Step 5: Solve for x
    x = 112,988,882.82/11,253.60
  6. Step 6: Final answer
    x = 10,040.24

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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.