Home / 8,318.28-11,482.92-5,176.56

Finding the Fourth Proportional to 8,318.28, 11,482.92 and 5,176.56

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Solution

The fourth proportional to 8,318.28, 11,482.92 and 5,176.56 is: 7,145.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.28 : 11,482.92 = 5,176.56 : x
  2. Step 2: Convert to fraction form
    8,318.28/11,482.92 = 5,176.56/x
  3. Step 3: Cross multiply
    8,318.28x = 11,482.92 × 5,176.56
  4. Step 4: Simplify right side
    8,318.28x = 59,442,024.36
  5. Step 5: Solve for x
    x = 59,442,024.36/8,318.28
  6. Step 6: Final answer
    x = 7,145.95

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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.