Home / 10,272.57-15,408.86-4,120.89

Finding the Fourth Proportional to 10,272.57, 15,408.86 and 4,120.89

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Solution

The fourth proportional to 10,272.57, 15,408.86 and 4,120.89 is: 6,181.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,272.57 : 15,408.86 = 4,120.89 : x
  2. Step 2: Convert to fraction form
    10,272.57/15,408.86 = 4,120.89/x
  3. Step 3: Cross multiply
    10,272.57x = 15,408.86 × 4,120.89
  4. Step 4: Simplify right side
    10,272.57x = 63,498,196.48
  5. Step 5: Solve for x
    x = 63,498,196.48/10,272.57
  6. Step 6: Final answer
    x = 6,181.34

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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.