Home / 9,186.60-13,782.02-3,921.80

Finding the Fourth Proportional to 9,186.60, 13,782.02 and 3,921.80

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Solution

The fourth proportional to 9,186.60, 13,782.02 and 3,921.80 is: 5,883.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,186.60 : 13,782.02 = 3,921.80 : x
  2. Step 2: Convert to fraction form
    9,186.60/13,782.02 = 3,921.80/x
  3. Step 3: Cross multiply
    9,186.60x = 13,782.02 × 3,921.80
  4. Step 4: Simplify right side
    9,186.60x = 54,050,326.04
  5. Step 5: Solve for x
    x = 54,050,326.04/9,186.60
  6. Step 6: Final answer
    x = 5,883.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.