Home / 8,159.28-11,264.58-5,919

Finding the Fourth Proportional to 8,159.28, 11,264.58 and 5,919

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Solution

The fourth proportional to 8,159.28, 11,264.58 and 5,919 is: 8,171.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,159.28 : 11,264.58 = 5,919 : x
  2. Step 2: Convert to fraction form
    8,159.28/11,264.58 = 5,919/x
  3. Step 3: Cross multiply
    8,159.28x = 11,264.58 × 5,919
  4. Step 4: Simplify right side
    8,159.28x = 66,675,049.02
  5. Step 5: Solve for x
    x = 66,675,049.02/8,159.28
  6. Step 6: Final answer
    x = 8,171.68

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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.