Home / 11,115.32-15,339.15-6,079.46

Finding the Fourth Proportional to 11,115.32, 15,339.15 and 6,079.46

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Solution

The fourth proportional to 11,115.32, 15,339.15 and 6,079.46 is: 8,389.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.32 : 15,339.15 = 6,079.46 : x
  2. Step 2: Convert to fraction form
    11,115.32/15,339.15 = 6,079.46/x
  3. Step 3: Cross multiply
    11,115.32x = 15,339.15 × 6,079.46
  4. Step 4: Simplify right side
    11,115.32x = 93,253,748.86
  5. Step 5: Solve for x
    x = 93,253,748.86/11,115.32
  6. Step 6: Final answer
    x = 8,389.66

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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.