Home / 7,349.76-10,143.36-5,229.12

Finding the Fourth Proportional to 7,349.76, 10,143.36 and 5,229.12

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Solution

The fourth proportional to 7,349.76, 10,143.36 and 5,229.12 is: 7,216.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,349.76 : 10,143.36 = 5,229.12 : x
  2. Step 2: Convert to fraction form
    7,349.76/10,143.36 = 5,229.12/x
  3. Step 3: Cross multiply
    7,349.76x = 10,143.36 × 5,229.12
  4. Step 4: Simplify right side
    7,349.76x = 53,040,846.64
  5. Step 5: Solve for x
    x = 53,040,846.64/7,349.76
  6. Step 6: Final answer
    x = 7,216.68

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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.