Home / 7,278.76-10,918.62-6,122.92

Finding the Fourth Proportional to 7,278.76, 10,918.62 and 6,122.92

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Solution

The fourth proportional to 7,278.76, 10,918.62 and 6,122.92 is: 9,184.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.76 : 10,918.62 = 6,122.92 : x
  2. Step 2: Convert to fraction form
    7,278.76/10,918.62 = 6,122.92/x
  3. Step 3: Cross multiply
    7,278.76x = 10,918.62 × 6,122.92
  4. Step 4: Simplify right side
    7,278.76x = 66,853,836.77
  5. Step 5: Solve for x
    x = 66,853,836.77/7,278.76
  6. Step 6: Final answer
    x = 9,184.78

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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.