Home / 10,408.90-15,533.22-8,319.10

Finding the Fourth Proportional to 10,408.90, 15,533.22 and 8,319.10

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Solution

The fourth proportional to 10,408.90, 15,533.22 and 8,319.10 is: 12,414.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,408.90 : 15,533.22 = 8,319.10 : x
  2. Step 2: Convert to fraction form
    10,408.90/15,533.22 = 8,319.10/x
  3. Step 3: Cross multiply
    10,408.90x = 15,533.22 × 8,319.10
  4. Step 4: Simplify right side
    10,408.90x = 129,222,410.50
  5. Step 5: Solve for x
    x = 129,222,410.50/10,408.90
  6. Step 6: Final answer
    x = 12,414.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.