Home / 11,126.97-15,350.92-7,150.28

Finding the Fourth Proportional to 11,126.97, 15,350.92 and 7,150.28

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Solution

The fourth proportional to 11,126.97, 15,350.92 and 7,150.28 is: 9,864.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,126.97 : 15,350.92 = 7,150.28 : x
  2. Step 2: Convert to fraction form
    11,126.97/15,350.92 = 7,150.28/x
  3. Step 3: Cross multiply
    11,126.97x = 15,350.92 × 7,150.28
  4. Step 4: Simplify right side
    11,126.97x = 109,763,281.63
  5. Step 5: Solve for x
    x = 109,763,281.63/11,126.97
  6. Step 6: Final answer
    x = 9,864.62

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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.