Home / 12,156.14-18,223.38-4,765.74

Finding the Fourth Proportional to 12,156.14, 18,223.38 and 4,765.74

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Solution

The fourth proportional to 12,156.14, 18,223.38 and 4,765.74 is: 7,144.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156.14 : 18,223.38 = 4,765.74 : x
  2. Step 2: Convert to fraction form
    12,156.14/18,223.38 = 4,765.74/x
  3. Step 3: Cross multiply
    12,156.14x = 18,223.38 × 4,765.74
  4. Step 4: Simplify right side
    12,156.14x = 86,847,891.00
  5. Step 5: Solve for x
    x = 86,847,891.00/12,156.14
  6. Step 6: Final answer
    x = 7,144.37

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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.