Home / 12,779.38-19,172.33-4,881.88

Finding the Fourth Proportional to 12,779.38, 19,172.33 and 4,881.88

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Solution

The fourth proportional to 12,779.38, 19,172.33 and 4,881.88 is: 7,324.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,779.38 : 19,172.33 = 4,881.88 : x
  2. Step 2: Convert to fraction form
    12,779.38/19,172.33 = 4,881.88/x
  3. Step 3: Cross multiply
    12,779.38x = 19,172.33 × 4,881.88
  4. Step 4: Simplify right side
    12,779.38x = 93,597,014.38
  5. Step 5: Solve for x
    x = 93,597,014.38/12,779.38
  6. Step 6: Final answer
    x = 7,324.07

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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.