Home / 12,666.16-18,998.70-12,369.52

Finding the Fourth Proportional to 12,666.16, 18,998.70 and 12,369.52

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Solution

The fourth proportional to 12,666.16, 18,998.70 and 12,369.52 is: 18,553.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.16 : 18,998.70 = 12,369.52 : x
  2. Step 2: Convert to fraction form
    12,666.16/18,998.70 = 12,369.52/x
  3. Step 3: Cross multiply
    12,666.16x = 18,998.70 × 12,369.52
  4. Step 4: Simplify right side
    12,666.16x = 235,004,799.62
  5. Step 5: Solve for x
    x = 235,004,799.62/12,666.16
  6. Step 6: Final answer
    x = 18,553.75

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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.