Home / 12,347.91-18,523.69-3,581.69

Finding the Fourth Proportional to 12,347.91, 18,523.69 and 3,581.69

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Solution

The fourth proportional to 12,347.91, 18,523.69 and 3,581.69 is: 5,373.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,347.91 : 18,523.69 = 3,581.69 : x
  2. Step 2: Convert to fraction form
    12,347.91/18,523.69 = 3,581.69/x
  3. Step 3: Cross multiply
    12,347.91x = 18,523.69 × 3,581.69
  4. Step 4: Simplify right side
    12,347.91x = 66,346,013.66
  5. Step 5: Solve for x
    x = 66,346,013.66/12,347.91
  6. Step 6: Final answer
    x = 5,373.06

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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.