Home / 13,949.76-20,920.20-4,587.62

Finding the Fourth Proportional to 13,949.76, 20,920.20 and 4,587.62

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Solution

The fourth proportional to 13,949.76, 20,920.20 and 4,587.62 is: 6,879.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.76 : 20,920.20 = 4,587.62 : x
  2. Step 2: Convert to fraction form
    13,949.76/20,920.20 = 4,587.62/x
  3. Step 3: Cross multiply
    13,949.76x = 20,920.20 × 4,587.62
  4. Step 4: Simplify right side
    13,949.76x = 95,973,927.92
  5. Step 5: Solve for x
    x = 95,973,927.92/13,949.76
  6. Step 6: Final answer
    x = 6,879.97

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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.