Home / 7,240.05-10,856.99-4,121.53

Finding the Fourth Proportional to 7,240.05, 10,856.99 and 4,121.53

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Solution

The fourth proportional to 7,240.05, 10,856.99 and 4,121.53 is: 6,180.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240.05 : 10,856.99 = 4,121.53 : x
  2. Step 2: Convert to fraction form
    7,240.05/10,856.99 = 4,121.53/x
  3. Step 3: Cross multiply
    7,240.05x = 10,856.99 × 4,121.53
  4. Step 4: Simplify right side
    7,240.05x = 44,747,393.16
  5. Step 5: Solve for x
    x = 44,747,393.16/7,240.05
  6. Step 6: Final answer
    x = 6,180.54

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1.5x scale

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.