Home / 18,701.13-28,056.30-5,553.48

Finding the Fourth Proportional to 18,701.13, 28,056.30 and 5,553.48

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Solution

The fourth proportional to 18,701.13, 28,056.30 and 5,553.48 is: 8,331.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,701.13 : 28,056.30 = 5,553.48 : x
  2. Step 2: Convert to fraction form
    18,701.13/28,056.30 = 5,553.48/x
  3. Step 3: Cross multiply
    18,701.13x = 28,056.30 × 5,553.48
  4. Step 4: Simplify right side
    18,701.13x = 155,810,100.92
  5. Step 5: Solve for x
    x = 155,810,100.92/18,701.13
  6. Step 6: Final answer
    x = 8,331.59

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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.