Home / 18,891.99-28,348.97-10,459.35

Finding the Fourth Proportional to 18,891.99, 28,348.97 and 10,459.35

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Solution

The fourth proportional to 18,891.99, 28,348.97 and 10,459.35 is: 15,695.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,891.99 : 28,348.97 = 10,459.35 : x
  2. Step 2: Convert to fraction form
    18,891.99/28,348.97 = 10,459.35/x
  3. Step 3: Cross multiply
    18,891.99x = 28,348.97 × 10,459.35
  4. Step 4: Simplify right side
    18,891.99x = 296,511,747.07
  5. Step 5: Solve for x
    x = 296,511,747.07/18,891.99
  6. Step 6: Final answer
    x = 15,695.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.