Home / 18,701.56-28,049.46-6,221.80

Finding the Fourth Proportional to 18,701.56, 28,049.46 and 6,221.80

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Solution

The fourth proportional to 18,701.56, 28,049.46 and 6,221.80 is: 9,331.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,701.56 : 28,049.46 = 6,221.80 : x
  2. Step 2: Convert to fraction form
    18,701.56/28,049.46 = 6,221.80/x
  3. Step 3: Cross multiply
    18,701.56x = 28,049.46 × 6,221.80
  4. Step 4: Simplify right side
    18,701.56x = 174,518,130.23
  5. Step 5: Solve for x
    x = 174,518,130.23/18,701.56
  6. Step 6: Final answer
    x = 9,331.74

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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.