Home / 12,071.13-18,108.75-3,749.61

Finding the Fourth Proportional to 12,071.13, 18,108.75 and 3,749.61

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Solution

The fourth proportional to 12,071.13, 18,108.75 and 3,749.61 is: 5,625.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,071.13 : 18,108.75 = 3,749.61 : x
  2. Step 2: Convert to fraction form
    12,071.13/18,108.75 = 3,749.61/x
  3. Step 3: Cross multiply
    12,071.13x = 18,108.75 × 3,749.61
  4. Step 4: Simplify right side
    12,071.13x = 67,900,750.09
  5. Step 5: Solve for x
    x = 67,900,750.09/12,071.13
  6. Step 6: Final answer
    x = 5,625.05

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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.