Home / 13,212.57-18,233.37-7,244.28

Finding the Fourth Proportional to 13,212.57, 18,233.37 and 7,244.28

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Solution

The fourth proportional to 13,212.57, 18,233.37 and 7,244.28 is: 9,997.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.57 : 18,233.37 = 7,244.28 : x
  2. Step 2: Convert to fraction form
    13,212.57/18,233.37 = 7,244.28/x
  3. Step 3: Cross multiply
    13,212.57x = 18,233.37 × 7,244.28
  4. Step 4: Simplify right side
    13,212.57x = 132,087,637.62
  5. Step 5: Solve for x
    x = 132,087,637.62/13,212.57
  6. Step 6: Final answer
    x = 9,997.12

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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.