Home / 17,818.35-26,748.23-10,428.11

Finding the Fourth Proportional to 17,818.35, 26,748.23 and 10,428.11

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Solution

The fourth proportional to 17,818.35, 26,748.23 and 10,428.11 is: 15,654.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,818.35 : 26,748.23 = 10,428.11 : x
  2. Step 2: Convert to fraction form
    17,818.35/26,748.23 = 10,428.11/x
  3. Step 3: Cross multiply
    17,818.35x = 26,748.23 × 10,428.11
  4. Step 4: Simplify right side
    17,818.35x = 278,933,399.17
  5. Step 5: Solve for x
    x = 278,933,399.17/17,818.35
  6. Step 6: Final answer
    x = 15,654.28

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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.