Home / 11,077.14-15,352.45-10,869.78

Finding the Fourth Proportional to 11,077.14, 15,352.45 and 10,869.78

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Solution

The fourth proportional to 11,077.14, 15,352.45 and 10,869.78 is: 15,065.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,077.14 : 15,352.45 = 10,869.78 : x
  2. Step 2: Convert to fraction form
    11,077.14/15,352.45 = 10,869.78/x
  3. Step 3: Cross multiply
    11,077.14x = 15,352.45 × 10,869.78
  4. Step 4: Simplify right side
    11,077.14x = 166,877,753.96
  5. Step 5: Solve for x
    x = 166,877,753.96/11,077.14
  6. Step 6: Final answer
    x = 15,065.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.