Home / 11,115.58-15,339.29-6,079.79

Finding the Fourth Proportional to 11,115.58, 15,339.29 and 6,079.79

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Solution

The fourth proportional to 11,115.58, 15,339.29 and 6,079.79 is: 8,390.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.58 : 15,339.29 = 6,079.79 : x
  2. Step 2: Convert to fraction form
    11,115.58/15,339.29 = 6,079.79/x
  3. Step 3: Cross multiply
    11,115.58x = 15,339.29 × 6,079.79
  4. Step 4: Simplify right side
    11,115.58x = 93,259,661.95
  5. Step 5: Solve for x
    x = 93,259,661.95/11,115.58
  6. Step 6: Final answer
    x = 8,390.00

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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.