Home / 18,815.72-28,226.02-6,330.38

Finding the Fourth Proportional to 18,815.72, 28,226.02 and 6,330.38

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Solution

The fourth proportional to 18,815.72, 28,226.02 and 6,330.38 is: 9,496.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,815.72 : 28,226.02 = 6,330.38 : x
  2. Step 2: Convert to fraction form
    18,815.72/28,226.02 = 6,330.38/x
  3. Step 3: Cross multiply
    18,815.72x = 28,226.02 × 6,330.38
  4. Step 4: Simplify right side
    18,815.72x = 178,681,432.49
  5. Step 5: Solve for x
    x = 178,681,432.49/18,815.72
  6. Step 6: Final answer
    x = 9,496.39

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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.