Home / 9,361.74-12,919.10-5,112.79

Finding the Fourth Proportional to 9,361.74, 12,919.10 and 5,112.79

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Solution

The fourth proportional to 9,361.74, 12,919.10 and 5,112.79 is: 7,055.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,361.74 : 12,919.10 = 5,112.79 : x
  2. Step 2: Convert to fraction form
    9,361.74/12,919.10 = 5,112.79/x
  3. Step 3: Cross multiply
    9,361.74x = 12,919.10 × 5,112.79
  4. Step 4: Simplify right side
    9,361.74x = 66,052,645.29
  5. Step 5: Solve for x
    x = 66,052,645.29/9,361.74
  6. Step 6: Final answer
    x = 7,055.59

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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.