Home / 10,138.29-15,207.44-3,212.25

Finding the Fourth Proportional to 10,138.29, 15,207.44 and 3,212.25

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Solution

The fourth proportional to 10,138.29, 15,207.44 and 3,212.25 is: 4,818.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,138.29 : 15,207.44 = 3,212.25 : x
  2. Step 2: Convert to fraction form
    10,138.29/15,207.44 = 3,212.25/x
  3. Step 3: Cross multiply
    10,138.29x = 15,207.44 × 3,212.25
  4. Step 4: Simplify right side
    10,138.29x = 48,850,083.08
  5. Step 5: Solve for x
    x = 48,850,083.08/10,138.29
  6. Step 6: Final answer
    x = 4,818.38

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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.