Home / 12,217.05-18,284.04-7,540.02

Finding the Fourth Proportional to 12,217.05, 18,284.04 and 7,540.02

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Solution

The fourth proportional to 12,217.05, 18,284.04 and 7,540.02 is: 11,284.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.05 : 18,284.04 = 7,540.02 : x
  2. Step 2: Convert to fraction form
    12,217.05/18,284.04 = 7,540.02/x
  3. Step 3: Cross multiply
    12,217.05x = 18,284.04 × 7,540.02
  4. Step 4: Simplify right side
    12,217.05x = 137,862,027.28
  5. Step 5: Solve for x
    x = 137,862,027.28/12,217.05
  6. Step 6: Final answer
    x = 11,284.40

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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.