Home / 18,976.11-28,463.55-8,587.86

Finding the Fourth Proportional to 18,976.11, 28,463.55 and 8,587.86

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Solution

The fourth proportional to 18,976.11, 28,463.55 and 8,587.86 is: 12,881.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,976.11 : 28,463.55 = 8,587.86 : x
  2. Step 2: Convert to fraction form
    18,976.11/28,463.55 = 8,587.86/x
  3. Step 3: Cross multiply
    18,976.11x = 28,463.55 × 8,587.86
  4. Step 4: Simplify right side
    18,976.11x = 244,440,982.50
  5. Step 5: Solve for x
    x = 244,440,982.50/18,976.11
  6. Step 6: Final answer
    x = 12,881.51

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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.