Home / 15,275.33-21,080.09-8,560.97

Finding the Fourth Proportional to 15,275.33, 21,080.09 and 8,560.97

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Solution

The fourth proportional to 15,275.33, 21,080.09 and 8,560.97 is: 11,814.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,275.33 : 21,080.09 = 8,560.97 : x
  2. Step 2: Convert to fraction form
    15,275.33/21,080.09 = 8,560.97/x
  3. Step 3: Cross multiply
    15,275.33x = 21,080.09 × 8,560.97
  4. Step 4: Simplify right side
    15,275.33x = 180,466,018.09
  5. Step 5: Solve for x
    x = 180,466,018.09/15,275.33
  6. Step 6: Final answer
    x = 11,814.21

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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.