Home / 7,932.28-11,887.48-7,239.72

Finding the Fourth Proportional to 7,932.28, 11,887.48 and 7,239.72

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Solution

The fourth proportional to 7,932.28, 11,887.48 and 7,239.72 is: 10,849.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,932.28 : 11,887.48 = 7,239.72 : x
  2. Step 2: Convert to fraction form
    7,932.28/11,887.48 = 7,239.72/x
  3. Step 3: Cross multiply
    7,932.28x = 11,887.48 × 7,239.72
  4. Step 4: Simplify right side
    7,932.28x = 86,062,026.71
  5. Step 5: Solve for x
    x = 86,062,026.71/7,932.28
  6. Step 6: Final answer
    x = 10,849.60

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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.