Home / 9,361.49-12,918.87-5,112.58

Finding the Fourth Proportional to 9,361.49, 12,918.87 and 5,112.58

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Solution

The fourth proportional to 9,361.49, 12,918.87 and 5,112.58 is: 7,055.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,361.49 : 12,918.87 = 5,112.58 : x
  2. Step 2: Convert to fraction form
    9,361.49/12,918.87 = 5,112.58/x
  3. Step 3: Cross multiply
    9,361.49x = 12,918.87 × 5,112.58
  4. Step 4: Simplify right side
    9,361.49x = 66,048,724.09
  5. Step 5: Solve for x
    x = 66,048,724.09/9,361.49
  6. Step 6: Final answer
    x = 7,055.37

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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.