Home / 18,748.36-28,108.42-11,351.04

Finding the Fourth Proportional to 18,748.36, 28,108.42 and 11,351.04

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Solution

The fourth proportional to 18,748.36, 28,108.42 and 11,351.04 is: 17,018.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,748.36 : 28,108.42 = 11,351.04 : x
  2. Step 2: Convert to fraction form
    18,748.36/28,108.42 = 11,351.04/x
  3. Step 3: Cross multiply
    18,748.36x = 28,108.42 × 11,351.04
  4. Step 4: Simplify right side
    18,748.36x = 319,059,665.97
  5. Step 5: Solve for x
    x = 319,059,665.97/18,748.36
  6. Step 6: Final answer
    x = 17,018.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.