Home / 12,895.20-19,346.04-5,103

Finding the Fourth Proportional to 12,895.20, 19,346.04 and 5,103

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Solution

The fourth proportional to 12,895.20, 19,346.04 and 5,103 is: 7,655.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,895.20 : 19,346.04 = 5,103 : x
  2. Step 2: Convert to fraction form
    12,895.20/19,346.04 = 5,103/x
  3. Step 3: Cross multiply
    12,895.20x = 19,346.04 × 5,103
  4. Step 4: Simplify right side
    12,895.20x = 98,722,842.12
  5. Step 5: Solve for x
    x = 98,722,842.12/12,895.20
  6. Step 6: Final answer
    x = 7,655.78

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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.