Home / 11,775.17-16,249.85-6,470.11

Finding the Fourth Proportional to 11,775.17, 16,249.85 and 6,470.11

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Solution

The fourth proportional to 11,775.17, 16,249.85 and 6,470.11 is: 8,928.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,775.17 : 16,249.85 = 6,470.11 : x
  2. Step 2: Convert to fraction form
    11,775.17/16,249.85 = 6,470.11/x
  3. Step 3: Cross multiply
    11,775.17x = 16,249.85 × 6,470.11
  4. Step 4: Simplify right side
    11,775.17x = 105,138,329.21
  5. Step 5: Solve for x
    x = 105,138,329.21/11,775.17
  6. Step 6: Final answer
    x = 8,928.81

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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.