Home / 12,720.44-17,552.57-7,055.17

Finding the Fourth Proportional to 12,720.44, 17,552.57 and 7,055.17

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Solution

The fourth proportional to 12,720.44, 17,552.57 and 7,055.17 is: 9,735.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,720.44 : 17,552.57 = 7,055.17 : x
  2. Step 2: Convert to fraction form
    12,720.44/17,552.57 = 7,055.17/x
  3. Step 3: Cross multiply
    12,720.44x = 17,552.57 × 7,055.17
  4. Step 4: Simplify right side
    12,720.44x = 123,836,286.13
  5. Step 5: Solve for x
    x = 123,836,286.13/12,720.44
  6. Step 6: Final answer
    x = 9,735.22

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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.