Home / 10,640.40-15,954.60-4,066.80

Finding the Fourth Proportional to 10,640.40, 15,954.60 and 4,066.80

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Solution

The fourth proportional to 10,640.40, 15,954.60 and 4,066.80 is: 6,097.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,640.40 : 15,954.60 = 4,066.80 : x
  2. Step 2: Convert to fraction form
    10,640.40/15,954.60 = 4,066.80/x
  3. Step 3: Cross multiply
    10,640.40x = 15,954.60 × 4,066.80
  4. Step 4: Simplify right side
    10,640.40x = 64,884,167.28
  5. Step 5: Solve for x
    x = 64,884,167.28/10,640.40
  6. Step 6: Final answer
    x = 6,097.91

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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.