Home / 10,278.12-15,415.56-3,351

Finding the Fourth Proportional to 10,278.12, 15,415.56 and 3,351

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Solution

The fourth proportional to 10,278.12, 15,415.56 and 3,351 is: 5,025.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.12 : 15,415.56 = 3,351 : x
  2. Step 2: Convert to fraction form
    10,278.12/15,415.56 = 3,351/x
  3. Step 3: Cross multiply
    10,278.12x = 15,415.56 × 3,351
  4. Step 4: Simplify right side
    10,278.12x = 51,657,541.56
  5. Step 5: Solve for x
    x = 51,657,541.56/10,278.12
  6. Step 6: Final answer
    x = 5,025.97

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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.