Home / 8,680.83-11,979.54-4,702.02

Finding the Fourth Proportional to 8,680.83, 11,979.54 and 4,702.02

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Solution

The fourth proportional to 8,680.83, 11,979.54 and 4,702.02 is: 6,488.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.83 : 11,979.54 = 4,702.02 : x
  2. Step 2: Convert to fraction form
    8,680.83/11,979.54 = 4,702.02/x
  3. Step 3: Cross multiply
    8,680.83x = 11,979.54 × 4,702.02
  4. Step 4: Simplify right side
    8,680.83x = 56,328,036.67
  5. Step 5: Solve for x
    x = 56,328,036.67/8,680.83
  6. Step 6: Final answer
    x = 6,488.78

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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.