Home / 13,129.68-18,104.25-10,732.20

Finding the Fourth Proportional to 13,129.68, 18,104.25 and 10,732.20

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Solution

The fourth proportional to 13,129.68, 18,104.25 and 10,732.20 is: 14,798.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129.68 : 18,104.25 = 10,732.20 : x
  2. Step 2: Convert to fraction form
    13,129.68/18,104.25 = 10,732.20/x
  3. Step 3: Cross multiply
    13,129.68x = 18,104.25 × 10,732.20
  4. Step 4: Simplify right side
    13,129.68x = 194,298,431.85
  5. Step 5: Solve for x
    x = 194,298,431.85/13,129.68
  6. Step 6: Final answer
    x = 14,798.41

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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.