Home / 13,315.60-19,983.73-5,003.18

Finding the Fourth Proportional to 13,315.60, 19,983.73 and 5,003.18

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Solution

The fourth proportional to 13,315.60, 19,983.73 and 5,003.18 is: 7,508.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.60 : 19,983.73 = 5,003.18 : x
  2. Step 2: Convert to fraction form
    13,315.60/19,983.73 = 5,003.18/x
  3. Step 3: Cross multiply
    13,315.60x = 19,983.73 × 5,003.18
  4. Step 4: Simplify right side
    13,315.60x = 99,982,198.26
  5. Step 5: Solve for x
    x = 99,982,198.26/13,315.60
  6. Step 6: Final answer
    x = 7,508.65

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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.