Home / 19,801.13-27,337.97-12,739.82

Finding the Fourth Proportional to 19,801.13, 27,337.97 and 12,739.82

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Solution

The fourth proportional to 19,801.13, 27,337.97 and 12,739.82 is: 17,588.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,801.13 : 27,337.97 = 12,739.82 : x
  2. Step 2: Convert to fraction form
    19,801.13/27,337.97 = 12,739.82/x
  3. Step 3: Cross multiply
    19,801.13x = 27,337.97 × 12,739.82
  4. Step 4: Simplify right side
    19,801.13x = 348,280,712.13
  5. Step 5: Solve for x
    x = 348,280,712.13/19,801.13
  6. Step 6: Final answer
    x = 17,588.94

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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.