Home / 8,220.81-12,329.42-2,376.15

Finding the Fourth Proportional to 8,220.81, 12,329.42 and 2,376.15

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Solution

The fourth proportional to 8,220.81, 12,329.42 and 2,376.15 is: 3,563.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.81 : 12,329.42 = 2,376.15 : x
  2. Step 2: Convert to fraction form
    8,220.81/12,329.42 = 2,376.15/x
  3. Step 3: Cross multiply
    8,220.81x = 12,329.42 × 2,376.15
  4. Step 4: Simplify right side
    8,220.81x = 29,296,539.45
  5. Step 5: Solve for x
    x = 29,296,539.45/8,220.81
  6. Step 6: Final answer
    x = 3,563.70

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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.