Home / 8,903.22-12,286.39-5,319.80

Finding the Fourth Proportional to 8,903.22, 12,286.39 and 5,319.80

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Solution

The fourth proportional to 8,903.22, 12,286.39 and 5,319.80 is: 7,341.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,903.22 : 12,286.39 = 5,319.80 : x
  2. Step 2: Convert to fraction form
    8,903.22/12,286.39 = 5,319.80/x
  3. Step 3: Cross multiply
    8,903.22x = 12,286.39 × 5,319.80
  4. Step 4: Simplify right side
    8,903.22x = 65,361,137.52
  5. Step 5: Solve for x
    x = 65,361,137.52/8,903.22
  6. Step 6: Final answer
    x = 7,341.29

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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.