Home / 15,422.82-21,272.94-9,764.76

Finding the Fourth Proportional to 15,422.82, 21,272.94 and 9,764.76

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Solution

The fourth proportional to 15,422.82, 21,272.94 and 9,764.76 is: 13,468.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,422.82 : 21,272.94 = 9,764.76 : x
  2. Step 2: Convert to fraction form
    15,422.82/21,272.94 = 9,764.76/x
  3. Step 3: Cross multiply
    15,422.82x = 21,272.94 × 9,764.76
  4. Step 4: Simplify right side
    15,422.82x = 207,725,153.59
  5. Step 5: Solve for x
    x = 207,725,153.59/15,422.82
  6. Step 6: Final answer
    x = 13,468.69

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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.