Home / 17,961.78-26,943.11-6,115.53

Finding the Fourth Proportional to 17,961.78, 26,943.11 and 6,115.53

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Solution

The fourth proportional to 17,961.78, 26,943.11 and 6,115.53 is: 9,173.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,961.78 : 26,943.11 = 6,115.53 : x
  2. Step 2: Convert to fraction form
    17,961.78/26,943.11 = 6,115.53/x
  3. Step 3: Cross multiply
    17,961.78x = 26,943.11 × 6,115.53
  4. Step 4: Simplify right side
    17,961.78x = 164,771,397.50
  5. Step 5: Solve for x
    x = 164,771,397.50/17,961.78
  6. Step 6: Final answer
    x = 9,173.44

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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.