Home / 12,129.14-18,156.06-6,568.68

Finding the Fourth Proportional to 12,129.14, 18,156.06 and 6,568.68

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Solution

The fourth proportional to 12,129.14, 18,156.06 and 6,568.68 is: 9,832.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129.14 : 18,156.06 = 6,568.68 : x
  2. Step 2: Convert to fraction form
    12,129.14/18,156.06 = 6,568.68/x
  3. Step 3: Cross multiply
    12,129.14x = 18,156.06 × 6,568.68
  4. Step 4: Simplify right side
    12,129.14x = 119,261,348.20
  5. Step 5: Solve for x
    x = 119,261,348.20/12,129.14
  6. Step 6: Final answer
    x = 9,832.63

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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.