Home / 12,146.91-18,212.58-5,125.01

Finding the Fourth Proportional to 12,146.91, 18,212.58 and 5,125.01

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Solution

The fourth proportional to 12,146.91, 18,212.58 and 5,125.01 is: 7,684.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,146.91 : 18,212.58 = 5,125.01 : x
  2. Step 2: Convert to fraction form
    12,146.91/18,212.58 = 5,125.01/x
  3. Step 3: Cross multiply
    12,146.91x = 18,212.58 × 5,125.01
  4. Step 4: Simplify right side
    12,146.91x = 93,339,563.56
  5. Step 5: Solve for x
    x = 93,339,563.56/12,146.91
  6. Step 6: Final answer
    x = 7,684.23

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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.