Home / 12,580.59-18,869.66-3,815.58

Finding the Fourth Proportional to 12,580.59, 18,869.66 and 3,815.58

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Solution

The fourth proportional to 12,580.59, 18,869.66 and 3,815.58 is: 5,723.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,580.59 : 18,869.66 = 3,815.58 : x
  2. Step 2: Convert to fraction form
    12,580.59/18,869.66 = 3,815.58/x
  3. Step 3: Cross multiply
    12,580.59x = 18,869.66 × 3,815.58
  4. Step 4: Simplify right side
    12,580.59x = 71,998,636.08
  5. Step 5: Solve for x
    x = 71,998,636.08/12,580.59
  6. Step 6: Final answer
    x = 5,723.00

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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.