Home / 13,343.13-20,018.34-3,983.58

Finding the Fourth Proportional to 13,343.13, 20,018.34 and 3,983.58

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Solution

The fourth proportional to 13,343.13, 20,018.34 and 3,983.58 is: 5,976.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343.13 : 20,018.34 = 3,983.58 : x
  2. Step 2: Convert to fraction form
    13,343.13/20,018.34 = 3,983.58/x
  3. Step 3: Cross multiply
    13,343.13x = 20,018.34 × 3,983.58
  4. Step 4: Simplify right side
    13,343.13x = 79,744,658.86
  5. Step 5: Solve for x
    x = 79,744,658.86/13,343.13
  6. Step 6: Final answer
    x = 5,976.46

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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.