Home / 13,423.77-18,540.54-10,744.29

Finding the Fourth Proportional to 13,423.77, 18,540.54 and 10,744.29

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Solution

The fourth proportional to 13,423.77, 18,540.54 and 10,744.29 is: 14,839.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.77 : 18,540.54 = 10,744.29 : x
  2. Step 2: Convert to fraction form
    13,423.77/18,540.54 = 10,744.29/x
  3. Step 3: Cross multiply
    13,423.77x = 18,540.54 × 10,744.29
  4. Step 4: Simplify right side
    13,423.77x = 199,204,938.52
  5. Step 5: Solve for x
    x = 199,204,938.52/13,423.77
  6. Step 6: Final answer
    x = 14,839.72

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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.