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Finding the Fourth Proportional to 18,498.78, 27,748.17 and 10,703.34

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Solution

The fourth proportional to 18,498.78, 27,748.17 and 10,703.34 is: 16,055.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,498.78 : 27,748.17 = 10,703.34 : x
  2. Step 2: Convert to fraction form
    18,498.78/27,748.17 = 10,703.34/x
  3. Step 3: Cross multiply
    18,498.78x = 27,748.17 × 10,703.34
  4. Step 4: Simplify right side
    18,498.78x = 296,998,097.89
  5. Step 5: Solve for x
    x = 296,998,097.89/18,498.78
  6. Step 6: Final answer
    x = 16,055.01

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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.