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Finding the Fourth Proportional to 15,005.22, 22,512.69 and 7,213.02

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Solution

The fourth proportional to 15,005.22, 22,512.69 and 7,213.02 is: 10,821.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,005.22 : 22,512.69 = 7,213.02 : x
  2. Step 2: Convert to fraction form
    15,005.22/22,512.69 = 7,213.02/x
  3. Step 3: Cross multiply
    15,005.22x = 22,512.69 × 7,213.02
  4. Step 4: Simplify right side
    15,005.22x = 162,384,483.22
  5. Step 5: Solve for x
    x = 162,384,483.22/15,005.22
  6. Step 6: Final answer
    x = 10,821.87

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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.