Home / 18,333.40-25,300.12-9,949.92

Finding the Fourth Proportional to 18,333.40, 25,300.12 and 9,949.92

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Solution

The fourth proportional to 18,333.40, 25,300.12 and 9,949.92 is: 13,730.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,333.40 : 25,300.12 = 9,949.92 : x
  2. Step 2: Convert to fraction form
    18,333.40/25,300.12 = 9,949.92/x
  3. Step 3: Cross multiply
    18,333.40x = 25,300.12 × 9,949.92
  4. Step 4: Simplify right side
    18,333.40x = 251,734,169.99
  5. Step 5: Solve for x
    x = 251,734,169.99/18,333.40
  6. Step 6: Final answer
    x = 13,730.90

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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.