Home / 12,317.60-18,479.64-3,553.22

Finding the Fourth Proportional to 12,317.60, 18,479.64 and 3,553.22

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Solution

The fourth proportional to 12,317.60, 18,479.64 and 3,553.22 is: 5,330.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,317.60 : 18,479.64 = 3,553.22 : x
  2. Step 2: Convert to fraction form
    12,317.60/18,479.64 = 3,553.22/x
  3. Step 3: Cross multiply
    12,317.60x = 18,479.64 × 3,553.22
  4. Step 4: Simplify right side
    12,317.60x = 65,662,226.44
  5. Step 5: Solve for x
    x = 65,662,226.44/12,317.60
  6. Step 6: Final answer
    x = 5,330.76

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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.