Home / 11,127.07-15,360.87-7,608.70

Finding the Fourth Proportional to 11,127.07, 15,360.87 and 7,608.70

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Solution

The fourth proportional to 11,127.07, 15,360.87 and 7,608.70 is: 10,503.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,127.07 : 15,360.87 = 7,608.70 : x
  2. Step 2: Convert to fraction form
    11,127.07/15,360.87 = 7,608.70/x
  3. Step 3: Cross multiply
    11,127.07x = 15,360.87 × 7,608.70
  4. Step 4: Simplify right side
    11,127.07x = 116,876,251.57
  5. Step 5: Solve for x
    x = 116,876,251.57/11,127.07
  6. Step 6: Final answer
    x = 10,503.78

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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.