Home / 18,728.27-28,088.60-6,877.97

Finding the Fourth Proportional to 18,728.27, 28,088.60 and 6,877.97

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Solution

The fourth proportional to 18,728.27, 28,088.60 and 6,877.97 is: 10,315.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,728.27 : 28,088.60 = 6,877.97 : x
  2. Step 2: Convert to fraction form
    18,728.27/28,088.60 = 6,877.97/x
  3. Step 3: Cross multiply
    18,728.27x = 28,088.60 × 6,877.97
  4. Step 4: Simplify right side
    18,728.27x = 193,192,565.34
  5. Step 5: Solve for x
    x = 193,192,565.34/18,728.27
  6. Step 6: Final answer
    x = 10,315.56

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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.