Home / 13,976.19-20,964.89-4,616.78

Finding the Fourth Proportional to 13,976.19, 20,964.89 and 4,616.78

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Solution

The fourth proportional to 13,976.19, 20,964.89 and 4,616.78 is: 6,925.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,976.19 : 20,964.89 = 4,616.78 : x
  2. Step 2: Convert to fraction form
    13,976.19/20,964.89 = 4,616.78/x
  3. Step 3: Cross multiply
    13,976.19x = 20,964.89 × 4,616.78
  4. Step 4: Simplify right side
    13,976.19x = 96,790,191.57
  5. Step 5: Solve for x
    x = 96,790,191.57/13,976.19
  6. Step 6: Final answer
    x = 6,925.36

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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.