Home / 11,054.60-15,261.23-8,877.47

Finding the Fourth Proportional to 11,054.60, 15,261.23 and 8,877.47

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Solution

The fourth proportional to 11,054.60, 15,261.23 and 8,877.47 is: 12,255.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,054.60 : 15,261.23 = 8,877.47 : x
  2. Step 2: Convert to fraction form
    11,054.60/15,261.23 = 8,877.47/x
  3. Step 3: Cross multiply
    11,054.60x = 15,261.23 × 8,877.47
  4. Step 4: Simplify right side
    11,054.60x = 135,481,028.95
  5. Step 5: Solve for x
    x = 135,481,028.95/11,054.60
  6. Step 6: Final answer
    x = 12,255.63

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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.