Home / 10,079.66-15,117.78-2,684.90

Finding the Fourth Proportional to 10,079.66, 15,117.78 and 2,684.90

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Solution

The fourth proportional to 10,079.66, 15,117.78 and 2,684.90 is: 4,026.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,079.66 : 15,117.78 = 2,684.90 : x
  2. Step 2: Convert to fraction form
    10,079.66/15,117.78 = 2,684.90/x
  3. Step 3: Cross multiply
    10,079.66x = 15,117.78 × 2,684.90
  4. Step 4: Simplify right side
    10,079.66x = 40,589,727.52
  5. Step 5: Solve for x
    x = 40,589,727.52/10,079.66
  6. Step 6: Final answer
    x = 4,026.89

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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.