Home / 11,077.35-15,278.10-7,098.84

Finding the Fourth Proportional to 11,077.35, 15,278.10 and 7,098.84

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Solution

The fourth proportional to 11,077.35, 15,278.10 and 7,098.84 is: 9,790.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,077.35 : 15,278.10 = 7,098.84 : x
  2. Step 2: Convert to fraction form
    11,077.35/15,278.10 = 7,098.84/x
  3. Step 3: Cross multiply
    11,077.35x = 15,278.10 × 7,098.84
  4. Step 4: Simplify right side
    11,077.35x = 108,456,728.76
  5. Step 5: Solve for x
    x = 108,456,728.76/11,077.35
  6. Step 6: Final answer
    x = 9,790.85

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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.