Home / 10,243.85-14,137.85-5,768.47

Finding the Fourth Proportional to 10,243.85, 14,137.85 and 5,768.47

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Solution

The fourth proportional to 10,243.85, 14,137.85 and 5,768.47 is: 7,961.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,243.85 : 14,137.85 = 5,768.47 : x
  2. Step 2: Convert to fraction form
    10,243.85/14,137.85 = 5,768.47/x
  3. Step 3: Cross multiply
    10,243.85x = 14,137.85 × 5,768.47
  4. Step 4: Simplify right side
    10,243.85x = 81,553,795.68
  5. Step 5: Solve for x
    x = 81,553,795.68/10,243.85
  6. Step 6: Final answer
    x = 7,961.25

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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.