Home / 10,104.36-15,135.85-8,236.90

Finding the Fourth Proportional to 10,104.36, 15,135.85 and 8,236.90

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Solution

The fourth proportional to 10,104.36, 15,135.85 and 8,236.90 is: 12,338.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,104.36 : 15,135.85 = 8,236.90 : x
  2. Step 2: Convert to fraction form
    10,104.36/15,135.85 = 8,236.90/x
  3. Step 3: Cross multiply
    10,104.36x = 15,135.85 × 8,236.90
  4. Step 4: Simplify right side
    10,104.36x = 124,672,482.87
  5. Step 5: Solve for x
    x = 124,672,482.87/10,104.36
  6. Step 6: Final answer
    x = 12,338.48

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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.