Home / 16,129.76-22,261.48-9,845.78

Finding the Fourth Proportional to 16,129.76, 22,261.48 and 9,845.78

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Solution

The fourth proportional to 16,129.76, 22,261.48 and 9,845.78 is: 13,588.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,129.76 : 22,261.48 = 9,845.78 : x
  2. Step 2: Convert to fraction form
    16,129.76/22,261.48 = 9,845.78/x
  3. Step 3: Cross multiply
    16,129.76x = 22,261.48 × 9,845.78
  4. Step 4: Simplify right side
    16,129.76x = 219,181,634.55
  5. Step 5: Solve for x
    x = 219,181,634.55/16,129.76
  6. Step 6: Final answer
    x = 13,588.65

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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.