Home / 8,315.93-12,463.07-3,379.80

Finding the Fourth Proportional to 8,315.93, 12,463.07 and 3,379.80

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Solution

The fourth proportional to 8,315.93, 12,463.07 and 3,379.80 is: 5,065.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.93 : 12,463.07 = 3,379.80 : x
  2. Step 2: Convert to fraction form
    8,315.93/12,463.07 = 3,379.80/x
  3. Step 3: Cross multiply
    8,315.93x = 12,463.07 × 3,379.80
  4. Step 4: Simplify right side
    8,315.93x = 42,122,683.99
  5. Step 5: Solve for x
    x = 42,122,683.99/8,315.93
  6. Step 6: Final answer
    x = 5,065.30

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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.