Home / 11,262.78-16,890.84-4,237.70

Finding the Fourth Proportional to 11,262.78, 16,890.84 and 4,237.70

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Solution

The fourth proportional to 11,262.78, 16,890.84 and 4,237.70 is: 6,355.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,262.78 : 16,890.84 = 4,237.70 : x
  2. Step 2: Convert to fraction form
    11,262.78/16,890.84 = 4,237.70/x
  3. Step 3: Cross multiply
    11,262.78x = 16,890.84 × 4,237.70
  4. Step 4: Simplify right side
    11,262.78x = 71,578,228.21
  5. Step 5: Solve for x
    x = 71,578,228.21/11,262.78
  6. Step 6: Final answer
    x = 6,355.29

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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.