Home / 13,278.38-19,905.27-4,507.15

Finding the Fourth Proportional to 13,278.38, 19,905.27 and 4,507.15

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Solution

The fourth proportional to 13,278.38, 19,905.27 and 4,507.15 is: 6,756.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278.38 : 19,905.27 = 4,507.15 : x
  2. Step 2: Convert to fraction form
    13,278.38/19,905.27 = 4,507.15/x
  3. Step 3: Cross multiply
    13,278.38x = 19,905.27 × 4,507.15
  4. Step 4: Simplify right side
    13,278.38x = 89,715,959.05
  5. Step 5: Solve for x
    x = 89,715,959.05/13,278.38
  6. Step 6: Final answer
    x = 6,756.54

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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.