Home / 12,330.70-17,131.14-12,183.08

Finding the Fourth Proportional to 12,330.70, 17,131.14 and 12,183.08

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Solution

The fourth proportional to 12,330.70, 17,131.14 and 12,183.08 is: 16,926.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,330.70 : 17,131.14 = 12,183.08 : x
  2. Step 2: Convert to fraction form
    12,330.70/17,131.14 = 12,183.08/x
  3. Step 3: Cross multiply
    12,330.70x = 17,131.14 × 12,183.08
  4. Step 4: Simplify right side
    12,330.70x = 208,709,963.46
  5. Step 5: Solve for x
    x = 208,709,963.46/12,330.70
  6. Step 6: Final answer
    x = 16,926.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.