Home / 11,981.49-16,534.61-6,877.83

Finding the Fourth Proportional to 11,981.49, 16,534.61 and 6,877.83

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Solution

The fourth proportional to 11,981.49, 16,534.61 and 6,877.83 is: 9,491.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,981.49 : 16,534.61 = 6,877.83 : x
  2. Step 2: Convert to fraction form
    11,981.49/16,534.61 = 6,877.83/x
  3. Step 3: Cross multiply
    11,981.49x = 16,534.61 × 6,877.83
  4. Step 4: Simplify right side
    11,981.49x = 113,722,236.70
  5. Step 5: Solve for x
    x = 113,722,236.70/11,981.49
  6. Step 6: Final answer
    x = 9,491.49

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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.