Home / 7,425.97-10,247.81-4,068.78

Finding the Fourth Proportional to 7,425.97, 10,247.81 and 4,068.78

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Solution

The fourth proportional to 7,425.97, 10,247.81 and 4,068.78 is: 5,614.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,425.97 : 10,247.81 = 4,068.78 : x
  2. Step 2: Convert to fraction form
    7,425.97/10,247.81 = 4,068.78/x
  3. Step 3: Cross multiply
    7,425.97x = 10,247.81 × 4,068.78
  4. Step 4: Simplify right side
    7,425.97x = 41,696,025.60
  5. Step 5: Solve for x
    x = 41,696,025.60/7,425.97
  6. Step 6: Final answer
    x = 5,614.89

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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.