Home / 11,601.11-17,387.08-8,320.61

Finding the Fourth Proportional to 11,601.11, 17,387.08 and 8,320.61

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Solution

The fourth proportional to 11,601.11, 17,387.08 and 8,320.61 is: 12,470.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,601.11 : 17,387.08 = 8,320.61 : x
  2. Step 2: Convert to fraction form
    11,601.11/17,387.08 = 8,320.61/x
  3. Step 3: Cross multiply
    11,601.11x = 17,387.08 × 8,320.61
  4. Step 4: Simplify right side
    11,601.11x = 144,671,111.72
  5. Step 5: Solve for x
    x = 144,671,111.72/11,601.11
  6. Step 6: Final answer
    x = 12,470.45

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1.5x scale

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.