Home / 9,309.18-13,959.38-3,381.89

Finding the Fourth Proportional to 9,309.18, 13,959.38 and 3,381.89

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Solution

The fourth proportional to 9,309.18, 13,959.38 and 3,381.89 is: 5,071.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,309.18 : 13,959.38 = 3,381.89 : x
  2. Step 2: Convert to fraction form
    9,309.18/13,959.38 = 3,381.89/x
  3. Step 3: Cross multiply
    9,309.18x = 13,959.38 × 3,381.89
  4. Step 4: Simplify right side
    9,309.18x = 47,209,087.63
  5. Step 5: Solve for x
    x = 47,209,087.63/9,309.18
  6. Step 6: Final answer
    x = 5,071.24

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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.