Home / 10,079.12-15,117.36-3,837.44

Finding the Fourth Proportional to 10,079.12, 15,117.36 and 3,837.44

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Solution

The fourth proportional to 10,079.12, 15,117.36 and 3,837.44 is: 5,755.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,079.12 : 15,117.36 = 3,837.44 : x
  2. Step 2: Convert to fraction form
    10,079.12/15,117.36 = 3,837.44/x
  3. Step 3: Cross multiply
    10,079.12x = 15,117.36 × 3,837.44
  4. Step 4: Simplify right side
    10,079.12x = 58,011,961.96
  5. Step 5: Solve for x
    x = 58,011,961.96/10,079.12
  6. Step 6: Final answer
    x = 5,755.66

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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.