Home / 15,107.28-20,843.73-9,134.62

Finding the Fourth Proportional to 15,107.28, 20,843.73 and 9,134.62

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Solution

The fourth proportional to 15,107.28, 20,843.73 and 9,134.62 is: 12,603.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,107.28 : 20,843.73 = 9,134.62 : x
  2. Step 2: Convert to fraction form
    15,107.28/20,843.73 = 9,134.62/x
  3. Step 3: Cross multiply
    15,107.28x = 20,843.73 × 9,134.62
  4. Step 4: Simplify right side
    15,107.28x = 190,399,552.93
  5. Step 5: Solve for x
    x = 190,399,552.93/15,107.28
  6. Step 6: Final answer
    x = 12,603.17

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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.