Home / 10,115.84-15,175.04-3,959.04

Finding the Fourth Proportional to 10,115.84, 15,175.04 and 3,959.04

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Solution

The fourth proportional to 10,115.84, 15,175.04 and 3,959.04 is: 5,939.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,115.84 : 15,175.04 = 3,959.04 : x
  2. Step 2: Convert to fraction form
    10,115.84/15,175.04 = 3,959.04/x
  3. Step 3: Cross multiply
    10,115.84x = 15,175.04 × 3,959.04
  4. Step 4: Simplify right side
    10,115.84x = 60,078,590.36
  5. Step 5: Solve for x
    x = 60,078,590.36/10,115.84
  6. Step 6: Final answer
    x = 5,939.06

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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.