Home / 8,923.12-13,390.82-3,079.74

Finding the Fourth Proportional to 8,923.12, 13,390.82 and 3,079.74

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Solution

The fourth proportional to 8,923.12, 13,390.82 and 3,079.74 is: 4,621.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,923.12 : 13,390.82 = 3,079.74 : x
  2. Step 2: Convert to fraction form
    8,923.12/13,390.82 = 3,079.74/x
  3. Step 3: Cross multiply
    8,923.12x = 13,390.82 × 3,079.74
  4. Step 4: Simplify right side
    8,923.12x = 41,240,243.99
  5. Step 5: Solve for x
    x = 41,240,243.99/8,923.12
  6. Step 6: Final answer
    x = 4,621.73

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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.