Home / 19,712.63-27,203.42-12,648.62

Finding the Fourth Proportional to 19,712.63, 27,203.42 and 12,648.62

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Solution

The fourth proportional to 19,712.63, 27,203.42 and 12,648.62 is: 17,455.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,712.63 : 27,203.42 = 12,648.62 : x
  2. Step 2: Convert to fraction form
    19,712.63/27,203.42 = 12,648.62/x
  3. Step 3: Cross multiply
    19,712.63x = 27,203.42 × 12,648.62
  4. Step 4: Simplify right side
    19,712.63x = 344,085,617.88
  5. Step 5: Solve for x
    x = 344,085,617.88/19,712.63
  6. Step 6: Final answer
    x = 17,455.09

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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.