Home / 13,132.06-18,122.36-7,163.75

Finding the Fourth Proportional to 13,132.06, 18,122.36 and 7,163.75

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Solution

The fourth proportional to 13,132.06, 18,122.36 and 7,163.75 is: 9,886.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132.06 : 18,122.36 = 7,163.75 : x
  2. Step 2: Convert to fraction form
    13,132.06/18,122.36 = 7,163.75/x
  3. Step 3: Cross multiply
    13,132.06x = 18,122.36 × 7,163.75
  4. Step 4: Simplify right side
    13,132.06x = 129,824,056.45
  5. Step 5: Solve for x
    x = 129,824,056.45/13,132.06
  6. Step 6: Final answer
    x = 9,886.04

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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.