Home / 21,207.54-29,266.74-11,776.20

Finding the Fourth Proportional to 21,207.54, 29,266.74 and 11,776.20

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Solution

The fourth proportional to 21,207.54, 29,266.74 and 11,776.20 is: 16,251.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,207.54 : 29,266.74 = 11,776.20 : x
  2. Step 2: Convert to fraction form
    21,207.54/29,266.74 = 11,776.20/x
  3. Step 3: Cross multiply
    21,207.54x = 29,266.74 × 11,776.20
  4. Step 4: Simplify right side
    21,207.54x = 344,650,983.59
  5. Step 5: Solve for x
    x = 344,650,983.59/21,207.54
  6. Step 6: Final answer
    x = 16,251.34

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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.