Home / 10,278.03-15,415.90-2,882.78

Finding the Fourth Proportional to 10,278.03, 15,415.90 and 2,882.78

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Solution

The fourth proportional to 10,278.03, 15,415.90 and 2,882.78 is: 4,323.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.03 : 15,415.90 = 2,882.78 : x
  2. Step 2: Convert to fraction form
    10,278.03/15,415.90 = 2,882.78/x
  3. Step 3: Cross multiply
    10,278.03x = 15,415.90 × 2,882.78
  4. Step 4: Simplify right side
    10,278.03x = 44,440,637.94
  5. Step 5: Solve for x
    x = 44,440,637.94/10,278.03
  6. Step 6: Final answer
    x = 4,323.85

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1.5x scale

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.