Home / 18,728.56-28,089.96-6,248.80

Finding the Fourth Proportional to 18,728.56, 28,089.96 and 6,248.80

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Solution

The fourth proportional to 18,728.56, 28,089.96 and 6,248.80 is: 9,372.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,728.56 : 28,089.96 = 6,248.80 : x
  2. Step 2: Convert to fraction form
    18,728.56/28,089.96 = 6,248.80/x
  3. Step 3: Cross multiply
    18,728.56x = 28,089.96 × 6,248.80
  4. Step 4: Simplify right side
    18,728.56x = 175,528,542.05
  5. Step 5: Solve for x
    x = 175,528,542.05/18,728.56
  6. Step 6: Final answer
    x = 9,372.24

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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.