Home / 11,424.29-15,738.39-10,861.48

Finding the Fourth Proportional to 11,424.29, 15,738.39 and 10,861.48

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Solution

The fourth proportional to 11,424.29, 15,738.39 and 10,861.48 is: 14,963.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,424.29 : 15,738.39 = 10,861.48 : x
  2. Step 2: Convert to fraction form
    11,424.29/15,738.39 = 10,861.48/x
  3. Step 3: Cross multiply
    11,424.29x = 15,738.39 × 10,861.48
  4. Step 4: Simplify right side
    11,424.29x = 170,942,208.22
  5. Step 5: Solve for x
    x = 170,942,208.22/11,424.29
  6. Step 6: Final answer
    x = 14,963.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.