Home / 10,138.23-15,207.89-3,213.27

Finding the Fourth Proportional to 10,138.23, 15,207.89 and 3,213.27

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Solution

The fourth proportional to 10,138.23, 15,207.89 and 3,213.27 is: 4,820.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,138.23 : 15,207.89 = 3,213.27 : x
  2. Step 2: Convert to fraction form
    10,138.23/15,207.89 = 3,213.27/x
  3. Step 3: Cross multiply
    10,138.23x = 15,207.89 × 3,213.27
  4. Step 4: Simplify right side
    10,138.23x = 48,867,040.63
  5. Step 5: Solve for x
    x = 48,867,040.63/10,138.23
  6. Step 6: Final answer
    x = 4,820.08

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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.