Home / 8,944.80-12,345.57-5,712.54

Finding the Fourth Proportional to 8,944.80, 12,345.57 and 5,712.54

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Solution

The fourth proportional to 8,944.80, 12,345.57 and 5,712.54 is: 7,884.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,944.80 : 12,345.57 = 5,712.54 : x
  2. Step 2: Convert to fraction form
    8,944.80/12,345.57 = 5,712.54/x
  3. Step 3: Cross multiply
    8,944.80x = 12,345.57 × 5,712.54
  4. Step 4: Simplify right side
    8,944.80x = 70,524,562.45
  5. Step 5: Solve for x
    x = 70,524,562.45/8,944.80
  6. Step 6: Final answer
    x = 7,884.42

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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.