Home / 9,399.22-12,971.10-5,150.46

Finding the Fourth Proportional to 9,399.22, 12,971.10 and 5,150.46

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Solution

The fourth proportional to 9,399.22, 12,971.10 and 5,150.46 is: 7,107.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,399.22 : 12,971.10 = 5,150.46 : x
  2. Step 2: Convert to fraction form
    9,399.22/12,971.10 = 5,150.46/x
  3. Step 3: Cross multiply
    9,399.22x = 12,971.10 × 5,150.46
  4. Step 4: Simplify right side
    9,399.22x = 66,807,131.71
  5. Step 5: Solve for x
    x = 66,807,131.71/9,399.22
  6. Step 6: Final answer
    x = 7,107.73

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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.