Home / 8,471.52-12,716.82-4,316.24

Finding the Fourth Proportional to 8,471.52, 12,716.82 and 4,316.24

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Solution

The fourth proportional to 8,471.52, 12,716.82 and 4,316.24 is: 6,479.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,471.52 : 12,716.82 = 4,316.24 : x
  2. Step 2: Convert to fraction form
    8,471.52/12,716.82 = 4,316.24/x
  3. Step 3: Cross multiply
    8,471.52x = 12,716.82 × 4,316.24
  4. Step 4: Simplify right side
    8,471.52x = 54,888,847.16
  5. Step 5: Solve for x
    x = 54,888,847.16/8,471.52
  6. Step 6: Final answer
    x = 6,479.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.