Home / 19,694.25-27,178.07-12,630.24

Finding the Fourth Proportional to 19,694.25, 27,178.07 and 12,630.24

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Solution

The fourth proportional to 19,694.25, 27,178.07 and 12,630.24 is: 17,429.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,694.25 : 27,178.07 = 12,630.24 : x
  2. Step 2: Convert to fraction form
    19,694.25/27,178.07 = 12,630.24/x
  3. Step 3: Cross multiply
    19,694.25x = 27,178.07 × 12,630.24
  4. Step 4: Simplify right side
    19,694.25x = 343,265,483.69
  5. Step 5: Solve for x
    x = 343,265,483.69/19,694.25
  6. Step 6: Final answer
    x = 17,429.73

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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.