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Finding the Fourth Proportional to 10,914.18, 15,062.02 and 6,198.90

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Solution

The fourth proportional to 10,914.18, 15,062.02 and 6,198.90 is: 8,554.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,914.18 : 15,062.02 = 6,198.90 : x
  2. Step 2: Convert to fraction form
    10,914.18/15,062.02 = 6,198.90/x
  3. Step 3: Cross multiply
    10,914.18x = 15,062.02 × 6,198.90
  4. Step 4: Simplify right side
    10,914.18x = 93,367,955.78
  5. Step 5: Solve for x
    x = 93,367,955.78/10,914.18
  6. Step 6: Final answer
    x = 8,554.74

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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.