Home / 21,206.72-29,265.50-11,775.28

Finding the Fourth Proportional to 21,206.72, 29,265.50 and 11,775.28

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Solution

The fourth proportional to 21,206.72, 29,265.50 and 11,775.28 is: 16,250.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,206.72 : 29,265.50 = 11,775.28 : x
  2. Step 2: Convert to fraction form
    21,206.72/29,265.50 = 11,775.28/x
  3. Step 3: Cross multiply
    21,206.72x = 29,265.50 × 11,775.28
  4. Step 4: Simplify right side
    21,206.72x = 344,609,456.84
  5. Step 5: Solve for x
    x = 344,609,456.84/21,206.72
  6. Step 6: Final answer
    x = 16,250.01

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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.