Home / 12,134.80-18,167.28-10,868.48

Finding the Fourth Proportional to 12,134.80, 18,167.28 and 10,868.48

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Solution

The fourth proportional to 12,134.80, 18,167.28 and 10,868.48 is: 16,271.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,134.80 : 18,167.28 = 10,868.48 : x
  2. Step 2: Convert to fraction form
    12,134.80/18,167.28 = 10,868.48/x
  3. Step 3: Cross multiply
    12,134.80x = 18,167.28 × 10,868.48
  4. Step 4: Simplify right side
    12,134.80x = 197,450,719.33
  5. Step 5: Solve for x
    x = 197,450,719.33/12,134.80
  6. Step 6: Final answer
    x = 16,271.44

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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.