Home / 8,979.96-12,392.82-5,001.72

Finding the Fourth Proportional to 8,979.96, 12,392.82 and 5,001.72

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Solution

The fourth proportional to 8,979.96, 12,392.82 and 5,001.72 is: 6,902.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.96 : 12,392.82 = 5,001.72 : x
  2. Step 2: Convert to fraction form
    8,979.96/12,392.82 = 5,001.72/x
  3. Step 3: Cross multiply
    8,979.96x = 12,392.82 × 5,001.72
  4. Step 4: Simplify right side
    8,979.96x = 61,985,415.65
  5. Step 5: Solve for x
    x = 61,985,415.65/8,979.96
  6. Step 6: Final answer
    x = 6,902.64

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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.