Home / 13,035.75-17,990.37-7,371.69

Finding the Fourth Proportional to 13,035.75, 17,990.37 and 7,371.69

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Solution

The fourth proportional to 13,035.75, 17,990.37 and 7,371.69 is: 10,173.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,035.75 : 17,990.37 = 7,371.69 : x
  2. Step 2: Convert to fraction form
    13,035.75/17,990.37 = 7,371.69/x
  3. Step 3: Cross multiply
    13,035.75x = 17,990.37 × 7,371.69
  4. Step 4: Simplify right side
    13,035.75x = 132,619,322.24
  5. Step 5: Solve for x
    x = 132,619,322.24/13,035.75
  6. Step 6: Final answer
    x = 10,173.51

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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.