Home / 8,979.78-13,477.97-4,540.57

Finding the Fourth Proportional to 8,979.78, 13,477.97 and 4,540.57

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Solution

The fourth proportional to 8,979.78, 13,477.97 and 4,540.57 is: 6,815.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.78 : 13,477.97 = 4,540.57 : x
  2. Step 2: Convert to fraction form
    8,979.78/13,477.97 = 4,540.57/x
  3. Step 3: Cross multiply
    8,979.78x = 13,477.97 × 4,540.57
  4. Step 4: Simplify right side
    8,979.78x = 61,197,719.71
  5. Step 5: Solve for x
    x = 61,197,719.71/8,979.78
  6. Step 6: Final answer
    x = 6,815.06

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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.