Home / 7,447.10-11,170.56-1,900.38

Finding the Fourth Proportional to 7,447.10, 11,170.56 and 1,900.38

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Solution

The fourth proportional to 7,447.10, 11,170.56 and 1,900.38 is: 2,850.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,447.10 : 11,170.56 = 1,900.38 : x
  2. Step 2: Convert to fraction form
    7,447.10/11,170.56 = 1,900.38/x
  3. Step 3: Cross multiply
    7,447.10x = 11,170.56 × 1,900.38
  4. Step 4: Simplify right side
    7,447.10x = 21,228,308.81
  5. Step 5: Solve for x
    x = 21,228,308.81/7,447.10
  6. Step 6: Final answer
    x = 2,850.55

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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.