Home / 10,966.86-16,447.86-4,391.28

Finding the Fourth Proportional to 10,966.86, 16,447.86 and 4,391.28

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Solution

The fourth proportional to 10,966.86, 16,447.86 and 4,391.28 is: 6,585.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,966.86 : 16,447.86 = 4,391.28 : x
  2. Step 2: Convert to fraction form
    10,966.86/16,447.86 = 4,391.28/x
  3. Step 3: Cross multiply
    10,966.86x = 16,447.86 × 4,391.28
  4. Step 4: Simplify right side
    10,966.86x = 72,227,158.66
  5. Step 5: Solve for x
    x = 72,227,158.66/10,966.86
  6. Step 6: Final answer
    x = 6,585.95

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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.