Home / 11,776.13-16,251.12-6,470.90

Finding the Fourth Proportional to 11,776.13, 16,251.12 and 6,470.90

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Solution

The fourth proportional to 11,776.13, 16,251.12 and 6,470.90 is: 8,929.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,776.13 : 16,251.12 = 6,470.90 : x
  2. Step 2: Convert to fraction form
    11,776.13/16,251.12 = 6,470.90/x
  3. Step 3: Cross multiply
    11,776.13x = 16,251.12 × 6,470.90
  4. Step 4: Simplify right side
    11,776.13x = 105,159,291.15
  5. Step 5: Solve for x
    x = 105,159,291.15/11,776.13
  6. Step 6: Final answer
    x = 8,929.87

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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.