Home / 10,932.71-15,086.88-6,216.68

Finding the Fourth Proportional to 10,932.71, 15,086.88 and 6,216.68

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Solution

The fourth proportional to 10,932.71, 15,086.88 and 6,216.68 is: 8,578.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,932.71 : 15,086.88 = 6,216.68 : x
  2. Step 2: Convert to fraction form
    10,932.71/15,086.88 = 6,216.68/x
  3. Step 3: Cross multiply
    10,932.71x = 15,086.88 × 6,216.68
  4. Step 4: Simplify right side
    10,932.71x = 93,790,305.16
  5. Step 5: Solve for x
    x = 93,790,305.16/10,932.71
  6. Step 6: Final answer
    x = 8,578.87

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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.