Home / 16,990.47-25,474.45-8,107.17

Finding the Fourth Proportional to 16,990.47, 25,474.45 and 8,107.17

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Solution

The fourth proportional to 16,990.47, 25,474.45 and 8,107.17 is: 12,155.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,990.47 : 25,474.45 = 8,107.17 : x
  2. Step 2: Convert to fraction form
    16,990.47/25,474.45 = 8,107.17/x
  3. Step 3: Cross multiply
    16,990.47x = 25,474.45 × 8,107.17
  4. Step 4: Simplify right side
    16,990.47x = 206,525,696.81
  5. Step 5: Solve for x
    x = 206,525,696.81/16,990.47
  6. Step 6: Final answer
    x = 12,155.38

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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.