Home / 13,343.12-20,017.53-3,983.87

Finding the Fourth Proportional to 13,343.12, 20,017.53 and 3,983.87

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Solution

The fourth proportional to 13,343.12, 20,017.53 and 3,983.87 is: 5,976.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343.12 : 20,017.53 = 3,983.87 : x
  2. Step 2: Convert to fraction form
    13,343.12/20,017.53 = 3,983.87/x
  3. Step 3: Cross multiply
    13,343.12x = 20,017.53 × 3,983.87
  4. Step 4: Simplify right side
    13,343.12x = 79,747,237.24
  5. Step 5: Solve for x
    x = 79,747,237.24/13,343.12
  6. Step 6: Final answer
    x = 5,976.66

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1.5x scale

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.