Home / 10,099.94-15,137.25-5,408.32

Finding the Fourth Proportional to 10,099.94, 15,137.25 and 5,408.32

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Solution

The fourth proportional to 10,099.94, 15,137.25 and 5,408.32 is: 8,105.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,099.94 : 15,137.25 = 5,408.32 : x
  2. Step 2: Convert to fraction form
    10,099.94/15,137.25 = 5,408.32/x
  3. Step 3: Cross multiply
    10,099.94x = 15,137.25 × 5,408.32
  4. Step 4: Simplify right side
    10,099.94x = 81,867,054.08
  5. Step 5: Solve for x
    x = 81,867,054.08/10,099.94
  6. Step 6: Final answer
    x = 8,105.70

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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.