Home / 10,135.56-15,207.73-5,450.10

Finding the Fourth Proportional to 10,135.56, 15,207.73 and 5,450.10

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Solution

The fourth proportional to 10,135.56, 15,207.73 and 5,450.10 is: 8,177.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,135.56 : 15,207.73 = 5,450.10 : x
  2. Step 2: Convert to fraction form
    10,135.56/15,207.73 = 5,450.10/x
  3. Step 3: Cross multiply
    10,135.56x = 15,207.73 × 5,450.10
  4. Step 4: Simplify right side
    10,135.56x = 82,883,578.62
  5. Step 5: Solve for x
    x = 82,883,578.62/10,135.56
  6. Step 6: Final answer
    x = 8,177.50

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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.