Home / 19,471.92-29,161.12-11,126.64

Finding the Fourth Proportional to 19,471.92, 29,161.12 and 11,126.64

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Solution

The fourth proportional to 19,471.92, 29,161.12 and 11,126.64 is: 16,663.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,471.92 : 29,161.12 = 11,126.64 : x
  2. Step 2: Convert to fraction form
    19,471.92/29,161.12 = 11,126.64/x
  3. Step 3: Cross multiply
    19,471.92x = 29,161.12 × 11,126.64
  4. Step 4: Simplify right side
    19,471.92x = 324,465,284.24
  5. Step 5: Solve for x
    x = 324,465,284.24/19,471.92
  6. Step 6: Final answer
    x = 16,663.24

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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.