Home / 8,723.60-13,084.68-2,878.64

Finding the Fourth Proportional to 8,723.60, 13,084.68 and 2,878.64

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Solution

The fourth proportional to 8,723.60, 13,084.68 and 2,878.64 is: 4,317.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,723.60 : 13,084.68 = 2,878.64 : x
  2. Step 2: Convert to fraction form
    8,723.60/13,084.68 = 2,878.64/x
  3. Step 3: Cross multiply
    8,723.60x = 13,084.68 × 2,878.64
  4. Step 4: Simplify right side
    8,723.60x = 37,666,083.24
  5. Step 5: Solve for x
    x = 37,666,083.24/8,723.60
  6. Step 6: Final answer
    x = 4,317.72

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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.