Home / 13,132.14-18,122.36-7,163.82

Finding the Fourth Proportional to 13,132.14, 18,122.36 and 7,163.82

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Solution

The fourth proportional to 13,132.14, 18,122.36 and 7,163.82 is: 9,886.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132.14 : 18,122.36 = 7,163.82 : x
  2. Step 2: Convert to fraction form
    13,132.14/18,122.36 = 7,163.82/x
  3. Step 3: Cross multiply
    13,132.14x = 18,122.36 × 7,163.82
  4. Step 4: Simplify right side
    13,132.14x = 129,825,325.02
  5. Step 5: Solve for x
    x = 129,825,325.02/13,132.14
  6. Step 6: Final answer
    x = 9,886.08

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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.