Home / 7,521.06-10,378.76-4,163.88

Finding the Fourth Proportional to 7,521.06, 10,378.76 and 4,163.88

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Solution

The fourth proportional to 7,521.06, 10,378.76 and 4,163.88 is: 5,745.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,521.06 : 10,378.76 = 4,163.88 : x
  2. Step 2: Convert to fraction form
    7,521.06/10,378.76 = 4,163.88/x
  3. Step 3: Cross multiply
    7,521.06x = 10,378.76 × 4,163.88
  4. Step 4: Simplify right side
    7,521.06x = 43,215,911.19
  5. Step 5: Solve for x
    x = 43,215,911.19/7,521.06
  6. Step 6: Final answer
    x = 5,745.99

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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.