Home / 10,977.70-15,138.44-10,067.04

Finding the Fourth Proportional to 10,977.70, 15,138.44 and 10,067.04

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Solution

The fourth proportional to 10,977.70, 15,138.44 and 10,067.04 is: 13,882.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,977.70 : 15,138.44 = 10,067.04 : x
  2. Step 2: Convert to fraction form
    10,977.70/15,138.44 = 10,067.04/x
  3. Step 3: Cross multiply
    10,977.70x = 15,138.44 × 10,067.04
  4. Step 4: Simplify right side
    10,977.70x = 152,399,281.02
  5. Step 5: Solve for x
    x = 152,399,281.02/10,977.70
  6. Step 6: Final answer
    x = 13,882.62

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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.