Home / 15,610.40-21,546.60-8,899.56

Finding the Fourth Proportional to 15,610.40, 21,546.60 and 8,899.56

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Solution

The fourth proportional to 15,610.40, 21,546.60 and 8,899.56 is: 12,283.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,610.40 : 21,546.60 = 8,899.56 : x
  2. Step 2: Convert to fraction form
    15,610.40/21,546.60 = 8,899.56/x
  3. Step 3: Cross multiply
    15,610.40x = 21,546.60 × 8,899.56
  4. Step 4: Simplify right side
    15,610.40x = 191,755,259.50
  5. Step 5: Solve for x
    x = 191,755,259.50/15,610.40
  6. Step 6: Final answer
    x = 12,283.81

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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.