Home / 13,321.26-18,384.77-9,958.29

Finding the Fourth Proportional to 13,321.26, 18,384.77 and 9,958.29

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Solution

The fourth proportional to 13,321.26, 18,384.77 and 9,958.29 is: 13,743.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321.26 : 18,384.77 = 9,958.29 : x
  2. Step 2: Convert to fraction form
    13,321.26/18,384.77 = 9,958.29/x
  3. Step 3: Cross multiply
    13,321.26x = 18,384.77 × 9,958.29
  4. Step 4: Simplify right side
    13,321.26x = 183,080,930.61
  5. Step 5: Solve for x
    x = 183,080,930.61/13,321.26
  6. Step 6: Final answer
    x = 13,743.51

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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.