Home / 21,207.98-29,265.86-11,775.94

Finding the Fourth Proportional to 21,207.98, 29,265.86 and 11,775.94

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Solution

The fourth proportional to 21,207.98, 29,265.86 and 11,775.94 is: 16,250.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,207.98 : 29,265.86 = 11,775.94 : x
  2. Step 2: Convert to fraction form
    21,207.98/29,265.86 = 11,775.94/x
  3. Step 3: Cross multiply
    21,207.98x = 29,265.86 × 11,775.94
  4. Step 4: Simplify right side
    21,207.98x = 344,632,967.68
  5. Step 5: Solve for x
    x = 344,632,967.68/21,207.98
  6. Step 6: Final answer
    x = 16,250.15

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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.