Home / 12,788.11-19,178.00-4,672.52

Finding the Fourth Proportional to 12,788.11, 19,178.00 and 4,672.52

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Solution

The fourth proportional to 12,788.11, 19,178.00 and 4,672.52 is: 7,007.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788.11 : 19,178.00 = 4,672.52 : x
  2. Step 2: Convert to fraction form
    12,788.11/19,178.00 = 4,672.52/x
  3. Step 3: Cross multiply
    12,788.11x = 19,178.00 × 4,672.52
  4. Step 4: Simplify right side
    12,788.11x = 89,609,558.75
  5. Step 5: Solve for x
    x = 89,609,558.75/12,788.11
  6. Step 6: Final answer
    x = 7,007.26

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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.