Home / 12,839.76-19,259.76-4,074

Finding the Fourth Proportional to 12,839.76, 19,259.76 and 4,074

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Solution

The fourth proportional to 12,839.76, 19,259.76 and 4,074 is: 6,111.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,839.76 : 19,259.76 = 4,074 : x
  2. Step 2: Convert to fraction form
    12,839.76/19,259.76 = 4,074/x
  3. Step 3: Cross multiply
    12,839.76x = 19,259.76 × 4,074
  4. Step 4: Simplify right side
    12,839.76x = 78,464,262.24
  5. Step 5: Solve for x
    x = 78,464,262.24/12,839.76
  6. Step 6: Final answer
    x = 6,111.04

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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.