Home / 8,680.82-11,979.53-4,701.94

Finding the Fourth Proportional to 8,680.82, 11,979.53 and 4,701.94

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Solution

The fourth proportional to 8,680.82, 11,979.53 and 4,701.94 is: 6,488.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.82 : 11,979.53 = 4,701.94 : x
  2. Step 2: Convert to fraction form
    8,680.82/11,979.53 = 4,701.94/x
  3. Step 3: Cross multiply
    8,680.82x = 11,979.53 × 4,701.94
  4. Step 4: Simplify right side
    8,680.82x = 56,327,013.09
  5. Step 5: Solve for x
    x = 56,327,013.09/8,680.82
  6. Step 6: Final answer
    x = 6,488.68

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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.