Home / 15,610.69-21,540.30-8,896.60

Finding the Fourth Proportional to 15,610.69, 21,540.30 and 8,896.60

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Solution

The fourth proportional to 15,610.69, 21,540.30 and 8,896.60 is: 12,275.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,610.69 : 21,540.30 = 8,896.60 : x
  2. Step 2: Convert to fraction form
    15,610.69/21,540.30 = 8,896.60/x
  3. Step 3: Cross multiply
    15,610.69x = 21,540.30 × 8,896.60
  4. Step 4: Simplify right side
    15,610.69x = 191,635,432.98
  5. Step 5: Solve for x
    x = 191,635,432.98/15,610.69
  6. Step 6: Final answer
    x = 12,275.91

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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.