Home / 11,897.28-17,949.80-11,864.48

Finding the Fourth Proportional to 11,897.28, 17,949.80 and 11,864.48

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Solution

The fourth proportional to 11,897.28, 17,949.80 and 11,864.48 is: 17,900.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,897.28 : 17,949.80 = 11,864.48 : x
  2. Step 2: Convert to fraction form
    11,897.28/17,949.80 = 11,864.48/x
  3. Step 3: Cross multiply
    11,897.28x = 17,949.80 × 11,864.48
  4. Step 4: Simplify right side
    11,897.28x = 212,964,983.02
  5. Step 5: Solve for x
    x = 212,964,983.02/11,897.28
  6. Step 6: Final answer
    x = 17,900.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.