Home / 8,748.28-13,123.26-2,905

Finding the Fourth Proportional to 8,748.28, 13,123.26 and 2,905

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Solution

The fourth proportional to 8,748.28, 13,123.26 and 2,905 is: 4,357.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,748.28 : 13,123.26 = 2,905 : x
  2. Step 2: Convert to fraction form
    8,748.28/13,123.26 = 2,905/x
  3. Step 3: Cross multiply
    8,748.28x = 13,123.26 × 2,905
  4. Step 4: Simplify right side
    8,748.28x = 38,123,070.30
  5. Step 5: Solve for x
    x = 38,123,070.30/8,748.28
  6. Step 6: Final answer
    x = 4,357.78

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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.