Home / 6,680.43-10,020.65-4,218.99

Finding the Fourth Proportional to 6,680.43, 10,020.65 and 4,218.99

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Solution

The fourth proportional to 6,680.43, 10,020.65 and 4,218.99 is: 6,328.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,680.43 : 10,020.65 = 4,218.99 : x
  2. Step 2: Convert to fraction form
    6,680.43/10,020.65 = 4,218.99/x
  3. Step 3: Cross multiply
    6,680.43x = 10,020.65 × 4,218.99
  4. Step 4: Simplify right side
    6,680.43x = 42,277,001.05
  5. Step 5: Solve for x
    x = 42,277,001.05/6,680.43
  6. Step 6: Final answer
    x = 6,328.49

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Similar ratio
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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.