Home / 18,941.01-28,414.60-6,459.78

Finding the Fourth Proportional to 18,941.01, 28,414.60 and 6,459.78

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Solution

The fourth proportional to 18,941.01, 28,414.60 and 6,459.78 is: 9,690.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,941.01 : 28,414.60 = 6,459.78 : x
  2. Step 2: Convert to fraction form
    18,941.01/28,414.60 = 6,459.78/x
  3. Step 3: Cross multiply
    18,941.01x = 28,414.60 × 6,459.78
  4. Step 4: Simplify right side
    18,941.01x = 183,551,915.45
  5. Step 5: Solve for x
    x = 183,551,915.45/18,941.01
  6. Step 6: Final answer
    x = 9,690.71

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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.