Home / 8,680.55-11,979.09-4,701.62

Finding the Fourth Proportional to 8,680.55, 11,979.09 and 4,701.62

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Solution

The fourth proportional to 8,680.55, 11,979.09 and 4,701.62 is: 6,488.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.55 : 11,979.09 = 4,701.62 : x
  2. Step 2: Convert to fraction form
    8,680.55/11,979.09 = 4,701.62/x
  3. Step 3: Cross multiply
    8,680.55x = 11,979.09 × 4,701.62
  4. Step 4: Simplify right side
    8,680.55x = 56,321,069.23
  5. Step 5: Solve for x
    x = 56,321,069.23/8,680.55
  6. Step 6: Final answer
    x = 6,488.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.