Home / 11,305.78-16,949.10-4,281.92

Finding the Fourth Proportional to 11,305.78, 16,949.10 and 4,281.92

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Solution

The fourth proportional to 11,305.78, 16,949.10 and 4,281.92 is: 6,419.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,305.78 : 16,949.10 = 4,281.92 : x
  2. Step 2: Convert to fraction form
    11,305.78/16,949.10 = 4,281.92/x
  3. Step 3: Cross multiply
    11,305.78x = 16,949.10 × 4,281.92
  4. Step 4: Simplify right side
    11,305.78x = 72,574,690.27
  5. Step 5: Solve for x
    x = 72,574,690.27/11,305.78
  6. Step 6: Final answer
    x = 6,419.26

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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.