Home / 10,408.15-15,613.04-3,012.72

Finding the Fourth Proportional to 10,408.15, 15,613.04 and 3,012.72

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Solution

The fourth proportional to 10,408.15, 15,613.04 and 3,012.72 is: 4,519.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,408.15 : 15,613.04 = 3,012.72 : x
  2. Step 2: Convert to fraction form
    10,408.15/15,613.04 = 3,012.72/x
  3. Step 3: Cross multiply
    10,408.15x = 15,613.04 × 3,012.72
  4. Step 4: Simplify right side
    10,408.15x = 47,037,717.87
  5. Step 5: Solve for x
    x = 47,037,717.87/10,408.15
  6. Step 6: Final answer
    x = 4,519.32

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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.