Home / 12,062.08-18,107.70-7,163.20

Finding the Fourth Proportional to 12,062.08, 18,107.70 and 7,163.20

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Solution

The fourth proportional to 12,062.08, 18,107.70 and 7,163.20 is: 10,753.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,062.08 : 18,107.70 = 7,163.20 : x
  2. Step 2: Convert to fraction form
    12,062.08/18,107.70 = 7,163.20/x
  3. Step 3: Cross multiply
    12,062.08x = 18,107.70 × 7,163.20
  4. Step 4: Simplify right side
    12,062.08x = 129,709,076.64
  5. Step 5: Solve for x
    x = 129,709,076.64/12,062.08
  6. Step 6: Final answer
    x = 10,753.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.