Home / 14,184.72-21,278.49-5,427

Finding the Fourth Proportional to 14,184.72, 21,278.49 and 5,427

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Solution

The fourth proportional to 14,184.72, 21,278.49 and 5,427 is: 8,141.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,184.72 : 21,278.49 = 5,427 : x
  2. Step 2: Convert to fraction form
    14,184.72/21,278.49 = 5,427/x
  3. Step 3: Cross multiply
    14,184.72x = 21,278.49 × 5,427
  4. Step 4: Simplify right side
    14,184.72x = 115,478,365.23
  5. Step 5: Solve for x
    x = 115,478,365.23/14,184.72
  6. Step 6: Final answer
    x = 8,141.04

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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.