Home / 10,993.32-15,174.14-8,770.48

Finding the Fourth Proportional to 10,993.32, 15,174.14 and 8,770.48

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Solution

The fourth proportional to 10,993.32, 15,174.14 and 8,770.48 is: 12,105.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,993.32 : 15,174.14 = 8,770.48 : x
  2. Step 2: Convert to fraction form
    10,993.32/15,174.14 = 8,770.48/x
  3. Step 3: Cross multiply
    10,993.32x = 15,174.14 × 8,770.48
  4. Step 4: Simplify right side
    10,993.32x = 133,084,409.60
  5. Step 5: Solve for x
    x = 133,084,409.60/10,993.32
  6. Step 6: Final answer
    x = 12,105.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.