Home / 10,278.68-15,389.39-6,571.76

Finding the Fourth Proportional to 10,278.68, 15,389.39 and 6,571.76

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Solution

The fourth proportional to 10,278.68, 15,389.39 and 6,571.76 is: 9,839.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.68 : 15,389.39 = 6,571.76 : x
  2. Step 2: Convert to fraction form
    10,278.68/15,389.39 = 6,571.76/x
  3. Step 3: Cross multiply
    10,278.68x = 15,389.39 × 6,571.76
  4. Step 4: Simplify right side
    10,278.68x = 101,135,267.82
  5. Step 5: Solve for x
    x = 101,135,267.82/10,278.68
  6. Step 6: Final answer
    x = 9,839.33

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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.