Home / 12,044.28-16,618.92-6,939

Finding the Fourth Proportional to 12,044.28, 16,618.92 and 6,939

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Solution

The fourth proportional to 12,044.28, 16,618.92 and 6,939 is: 9,574.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,044.28 : 16,618.92 = 6,939 : x
  2. Step 2: Convert to fraction form
    12,044.28/16,618.92 = 6,939/x
  3. Step 3: Cross multiply
    12,044.28x = 16,618.92 × 6,939
  4. Step 4: Simplify right side
    12,044.28x = 115,318,685.88
  5. Step 5: Solve for x
    x = 115,318,685.88/12,044.28
  6. Step 6: Final answer
    x = 9,574.56

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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.