Home / 19,897.48-27,456.55-11,397.97

Finding the Fourth Proportional to 19,897.48, 27,456.55 and 11,397.97

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Solution

The fourth proportional to 19,897.48, 27,456.55 and 11,397.97 is: 15,728.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,897.48 : 27,456.55 = 11,397.97 : x
  2. Step 2: Convert to fraction form
    19,897.48/27,456.55 = 11,397.97/x
  3. Step 3: Cross multiply
    19,897.48x = 27,456.55 × 11,397.97
  4. Step 4: Simplify right side
    19,897.48x = 312,948,933.20
  5. Step 5: Solve for x
    x = 312,948,933.20/19,897.48
  6. Step 6: Final answer
    x = 15,728.07

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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.