Home / 8,677.60-13,016.82-3,130.72

Finding the Fourth Proportional to 8,677.60, 13,016.82 and 3,130.72

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Solution

The fourth proportional to 8,677.60, 13,016.82 and 3,130.72 is: 4,696.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,677.60 : 13,016.82 = 3,130.72 : x
  2. Step 2: Convert to fraction form
    8,677.60/13,016.82 = 3,130.72/x
  3. Step 3: Cross multiply
    8,677.60x = 13,016.82 × 3,130.72
  4. Step 4: Simplify right side
    8,677.60x = 40,752,018.71
  5. Step 5: Solve for x
    x = 40,752,018.71/8,677.60
  6. Step 6: Final answer
    x = 4,696.23

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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.