Home / 13,723.73-18,938.51-8,344.22

Finding the Fourth Proportional to 13,723.73, 18,938.51 and 8,344.22

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Solution

The fourth proportional to 13,723.73, 18,938.51 and 8,344.22 is: 11,514.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.73 : 18,938.51 = 8,344.22 : x
  2. Step 2: Convert to fraction form
    13,723.73/18,938.51 = 8,344.22/x
  3. Step 3: Cross multiply
    13,723.73x = 18,938.51 × 8,344.22
  4. Step 4: Simplify right side
    13,723.73x = 158,026,988.79
  5. Step 5: Solve for x
    x = 158,026,988.79/13,723.73
  6. Step 6: Final answer
    x = 11,514.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.