Home / 11,115.90-15,339.78-6,080.02

Finding the Fourth Proportional to 11,115.90, 15,339.78 and 6,080.02

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Solution

The fourth proportional to 11,115.90, 15,339.78 and 6,080.02 is: 8,390.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.90 : 15,339.78 = 6,080.02 : x
  2. Step 2: Convert to fraction form
    11,115.90/15,339.78 = 6,080.02/x
  3. Step 3: Cross multiply
    11,115.90x = 15,339.78 × 6,080.02
  4. Step 4: Simplify right side
    11,115.90x = 93,266,169.20
  5. Step 5: Solve for x
    x = 93,266,169.20/11,115.90
  6. Step 6: Final answer
    x = 8,390.34

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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.