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Finding the Fourth Proportional to 10,181.70, 15,272.55 and 3,605.70

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Solution

The fourth proportional to 10,181.70, 15,272.55 and 3,605.70 is: 5,408.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,181.70 : 15,272.55 = 3,605.70 : x
  2. Step 2: Convert to fraction form
    10,181.70/15,272.55 = 3,605.70/x
  3. Step 3: Cross multiply
    10,181.70x = 15,272.55 × 3,605.70
  4. Step 4: Simplify right side
    10,181.70x = 55,068,233.54
  5. Step 5: Solve for x
    x = 55,068,233.54/10,181.70
  6. Step 6: Final answer
    x = 5,408.55

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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.