Home / 21,197.68-29,253-11,767.12

Finding the Fourth Proportional to 21,197.68, 29,253 and 11,767.12

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Solution

The fourth proportional to 21,197.68, 29,253 and 11,767.12 is: 16,238.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,197.68 : 29,253 = 11,767.12 : x
  2. Step 2: Convert to fraction form
    21,197.68/29,253 = 11,767.12/x
  3. Step 3: Cross multiply
    21,197.68x = 29,253 × 11,767.12
  4. Step 4: Simplify right side
    21,197.68x = 344,223,561.36
  5. Step 5: Solve for x
    x = 344,223,561.36/21,197.68
  6. Step 6: Final answer
    x = 16,238.74

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Double scale
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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.