Home / 13,666.59-18,723.29-13,154.66

Finding the Fourth Proportional to 13,666.59, 18,723.29 and 13,154.66

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Solution

The fourth proportional to 13,666.59, 18,723.29 and 13,154.66 is: 18,021.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,666.59 : 18,723.29 = 13,154.66 : x
  2. Step 2: Convert to fraction form
    13,666.59/18,723.29 = 13,154.66/x
  3. Step 3: Cross multiply
    13,666.59x = 18,723.29 × 13,154.66
  4. Step 4: Simplify right side
    13,666.59x = 246,298,514.03
  5. Step 5: Solve for x
    x = 246,298,514.03/13,666.59
  6. Step 6: Final answer
    x = 18,021.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.