Home / 7,539.80-10,404.91-4,183.12

Finding the Fourth Proportional to 7,539.80, 10,404.91 and 4,183.12

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Solution

The fourth proportional to 7,539.80, 10,404.91 and 4,183.12 is: 5,772.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,539.80 : 10,404.91 = 4,183.12 : x
  2. Step 2: Convert to fraction form
    7,539.80/10,404.91 = 4,183.12/x
  3. Step 3: Cross multiply
    7,539.80x = 10,404.91 × 4,183.12
  4. Step 4: Simplify right side
    7,539.80x = 43,524,966.20
  5. Step 5: Solve for x
    x = 43,524,966.20/7,539.80
  6. Step 6: Final answer
    x = 5,772.70

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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.