Home / 9,320.40-13,983.04-3,081.36

Finding the Fourth Proportional to 9,320.40, 13,983.04 and 3,081.36

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Solution

The fourth proportional to 9,320.40, 13,983.04 and 3,081.36 is: 4,622.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,320.40 : 13,983.04 = 3,081.36 : x
  2. Step 2: Convert to fraction form
    9,320.40/13,983.04 = 3,081.36/x
  3. Step 3: Cross multiply
    9,320.40x = 13,983.04 × 3,081.36
  4. Step 4: Simplify right side
    9,320.40x = 43,086,780.13
  5. Step 5: Solve for x
    x = 43,086,780.13/9,320.40
  6. Step 6: Final answer
    x = 4,622.85

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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.