Home / 11,332.11-15,639.30-6,617.91

Finding the Fourth Proportional to 11,332.11, 15,639.30 and 6,617.91

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Solution

The fourth proportional to 11,332.11, 15,639.30 and 6,617.91 is: 9,133.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,332.11 : 15,639.30 = 6,617.91 : x
  2. Step 2: Convert to fraction form
    11,332.11/15,639.30 = 6,617.91/x
  3. Step 3: Cross multiply
    11,332.11x = 15,639.30 × 6,617.91
  4. Step 4: Simplify right side
    11,332.11x = 103,499,479.86
  5. Step 5: Solve for x
    x = 103,499,479.86/11,332.11
  6. Step 6: Final answer
    x = 9,133.29

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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.