Home / 13,373.91-20,060.80-5,480.09

Finding the Fourth Proportional to 13,373.91, 20,060.80 and 5,480.09

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Solution

The fourth proportional to 13,373.91, 20,060.80 and 5,480.09 is: 8,220.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,373.91 : 20,060.80 = 5,480.09 : x
  2. Step 2: Convert to fraction form
    13,373.91/20,060.80 = 5,480.09/x
  3. Step 3: Cross multiply
    13,373.91x = 20,060.80 × 5,480.09
  4. Step 4: Simplify right side
    13,373.91x = 109,934,989.47
  5. Step 5: Solve for x
    x = 109,934,989.47/13,373.91
  6. Step 6: Final answer
    x = 8,220.11

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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.