Home / 12,149.65-18,223.96-3,835.63

Finding the Fourth Proportional to 12,149.65, 18,223.96 and 3,835.63

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Solution

The fourth proportional to 12,149.65, 18,223.96 and 3,835.63 is: 5,753.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,149.65 : 18,223.96 = 3,835.63 : x
  2. Step 2: Convert to fraction form
    12,149.65/18,223.96 = 3,835.63/x
  3. Step 3: Cross multiply
    12,149.65x = 18,223.96 × 3,835.63
  4. Step 4: Simplify right side
    12,149.65x = 69,900,367.69
  5. Step 5: Solve for x
    x = 69,900,367.69/12,149.65
  6. Step 6: Final answer
    x = 5,753.28

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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.