Home / 19,699.59-27,174.91-13,317.80

Finding the Fourth Proportional to 19,699.59, 27,174.91 and 13,317.80

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Solution

The fourth proportional to 19,699.59, 27,174.91 and 13,317.80 is: 18,371.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,699.59 : 27,174.91 = 13,317.80 : x
  2. Step 2: Convert to fraction form
    19,699.59/27,174.91 = 13,317.80/x
  3. Step 3: Cross multiply
    19,699.59x = 27,174.91 × 13,317.80
  4. Step 4: Simplify right side
    19,699.59x = 361,910,016.40
  5. Step 5: Solve for x
    x = 361,910,016.40/19,699.59
  6. Step 6: Final answer
    x = 18,371.45

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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.