Home / 11,115.28-15,339.53-6,079.71

Finding the Fourth Proportional to 11,115.28, 15,339.53 and 6,079.71

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Solution

The fourth proportional to 11,115.28, 15,339.53 and 6,079.71 is: 8,390.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.28 : 15,339.53 = 6,079.71 : x
  2. Step 2: Convert to fraction form
    11,115.28/15,339.53 = 6,079.71/x
  3. Step 3: Cross multiply
    11,115.28x = 15,339.53 × 6,079.71
  4. Step 4: Simplify right side
    11,115.28x = 93,259,846.18
  5. Step 5: Solve for x
    x = 93,259,846.18/11,115.28
  6. Step 6: Final answer
    x = 8,390.24

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Double scale
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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.