Home / 15,486.98-21,375.43-10,182.29

Finding the Fourth Proportional to 15,486.98, 21,375.43 and 10,182.29

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Solution

The fourth proportional to 15,486.98, 21,375.43 and 10,182.29 is: 14,053.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,486.98 : 21,375.43 = 10,182.29 : x
  2. Step 2: Convert to fraction form
    15,486.98/21,375.43 = 10,182.29/x
  3. Step 3: Cross multiply
    15,486.98x = 21,375.43 × 10,182.29
  4. Step 4: Simplify right side
    15,486.98x = 217,650,694.80
  5. Step 5: Solve for x
    x = 217,650,694.80/15,486.98
  6. Step 6: Final answer
    x = 14,053.79

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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.