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Finding the Fourth Proportional to 8,290.99, 12,441.26 and 4,395.39

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Solution

The fourth proportional to 8,290.99, 12,441.26 and 4,395.39 is: 6,595.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,290.99 : 12,441.26 = 4,395.39 : x
  2. Step 2: Convert to fraction form
    8,290.99/12,441.26 = 4,395.39/x
  3. Step 3: Cross multiply
    8,290.99x = 12,441.26 × 4,395.39
  4. Step 4: Simplify right side
    8,290.99x = 54,684,189.79
  5. Step 5: Solve for x
    x = 54,684,189.79/8,290.99
  6. Step 6: Final answer
    x = 6,595.62

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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.