Home / 13,629.23-18,808.50-8,251.59

Finding the Fourth Proportional to 13,629.23, 18,808.50 and 8,251.59

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Solution

The fourth proportional to 13,629.23, 18,808.50 and 8,251.59 is: 11,387.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.23 : 18,808.50 = 8,251.59 : x
  2. Step 2: Convert to fraction form
    13,629.23/18,808.50 = 8,251.59/x
  3. Step 3: Cross multiply
    13,629.23x = 18,808.50 × 8,251.59
  4. Step 4: Simplify right side
    13,629.23x = 155,200,030.52
  5. Step 5: Solve for x
    x = 155,200,030.52/13,629.23
  6. Step 6: Final answer
    x = 11,387.29

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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.