Home / 10,217.03-15,395.09-8,408.70

Finding the Fourth Proportional to 10,217.03, 15,395.09 and 8,408.70

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Solution

The fourth proportional to 10,217.03, 15,395.09 and 8,408.70 is: 12,670.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,217.03 : 15,395.09 = 8,408.70 : x
  2. Step 2: Convert to fraction form
    10,217.03/15,395.09 = 8,408.70/x
  3. Step 3: Cross multiply
    10,217.03x = 15,395.09 × 8,408.70
  4. Step 4: Simplify right side
    10,217.03x = 129,452,651.24
  5. Step 5: Solve for x
    x = 129,452,651.24/10,217.03
  6. Step 6: Final answer
    x = 12,670.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.