Home / 9,165.19-13,749.13-3,320.43

Finding the Fourth Proportional to 9,165.19, 13,749.13 and 3,320.43

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Solution

The fourth proportional to 9,165.19, 13,749.13 and 3,320.43 is: 4,981.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,165.19 : 13,749.13 = 3,320.43 : x
  2. Step 2: Convert to fraction form
    9,165.19/13,749.13 = 3,320.43/x
  3. Step 3: Cross multiply
    9,165.19x = 13,749.13 × 3,320.43
  4. Step 4: Simplify right side
    9,165.19x = 45,653,023.73
  5. Step 5: Solve for x
    x = 45,653,023.73/9,165.19
  6. Step 6: Final answer
    x = 4,981.13

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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.