Home / 13,127.78-19,694.64-4,363.04

Finding the Fourth Proportional to 13,127.78, 19,694.64 and 4,363.04

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Solution

The fourth proportional to 13,127.78, 19,694.64 and 4,363.04 is: 6,545.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,127.78 : 19,694.64 = 4,363.04 : x
  2. Step 2: Convert to fraction form
    13,127.78/19,694.64 = 4,363.04/x
  3. Step 3: Cross multiply
    13,127.78x = 19,694.64 × 4,363.04
  4. Step 4: Simplify right side
    13,127.78x = 85,928,502.11
  5. Step 5: Solve for x
    x = 85,928,502.11/13,127.78
  6. Step 6: Final answer
    x = 6,545.55

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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.