Home / 18,934.60-28,401.76-5,786.92

Finding the Fourth Proportional to 18,934.60, 28,401.76 and 5,786.92

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Solution

The fourth proportional to 18,934.60, 28,401.76 and 5,786.92 is: 8,680.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,934.60 : 28,401.76 = 5,786.92 : x
  2. Step 2: Convert to fraction form
    18,934.60/28,401.76 = 5,786.92/x
  3. Step 3: Cross multiply
    18,934.60x = 28,401.76 × 5,786.92
  4. Step 4: Simplify right side
    18,934.60x = 164,358,712.98
  5. Step 5: Solve for x
    x = 164,358,712.98/18,934.60
  6. Step 6: Final answer
    x = 8,680.34

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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.