Home / 15,610.57-21,540.08-8,896.33

Finding the Fourth Proportional to 15,610.57, 21,540.08 and 8,896.33

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Solution

The fourth proportional to 15,610.57, 21,540.08 and 8,896.33 is: 12,275.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,610.57 : 21,540.08 = 8,896.33 : x
  2. Step 2: Convert to fraction form
    15,610.57/21,540.08 = 8,896.33/x
  3. Step 3: Cross multiply
    15,610.57x = 21,540.08 × 8,896.33
  4. Step 4: Simplify right side
    15,610.57x = 191,627,659.03
  5. Step 5: Solve for x
    x = 191,627,659.03/15,610.57
  6. Step 6: Final answer
    x = 12,275.50

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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.