Home / 11,689.84-16,132.26-6,384.61

Finding the Fourth Proportional to 11,689.84, 16,132.26 and 6,384.61

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Solution

The fourth proportional to 11,689.84, 16,132.26 and 6,384.61 is: 8,810.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,689.84 : 16,132.26 = 6,384.61 : x
  2. Step 2: Convert to fraction form
    11,689.84/16,132.26 = 6,384.61/x
  3. Step 3: Cross multiply
    11,689.84x = 16,132.26 × 6,384.61
  4. Step 4: Simplify right side
    11,689.84x = 102,998,188.52
  5. Step 5: Solve for x
    x = 102,998,188.52/11,689.84
  6. Step 6: Final answer
    x = 8,810.92

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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.