Home / 18,902.97-28,358.78-5,756.40

Finding the Fourth Proportional to 18,902.97, 28,358.78 and 5,756.40

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Solution

The fourth proportional to 18,902.97, 28,358.78 and 5,756.40 is: 8,635.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,902.97 : 28,358.78 = 5,756.40 : x
  2. Step 2: Convert to fraction form
    18,902.97/28,358.78 = 5,756.40/x
  3. Step 3: Cross multiply
    18,902.97x = 28,358.78 × 5,756.40
  4. Step 4: Simplify right side
    18,902.97x = 163,244,452.41
  5. Step 5: Solve for x
    x = 163,244,452.41/18,902.97
  6. Step 6: Final answer
    x = 8,635.92

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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.