Home / 10,815.25-16,224.63-4,237.87

Finding the Fourth Proportional to 10,815.25, 16,224.63 and 4,237.87

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Solution

The fourth proportional to 10,815.25, 16,224.63 and 4,237.87 is: 6,357.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,815.25 : 16,224.63 = 4,237.87 : x
  2. Step 2: Convert to fraction form
    10,815.25/16,224.63 = 4,237.87/x
  3. Step 3: Cross multiply
    10,815.25x = 16,224.63 × 4,237.87
  4. Step 4: Simplify right side
    10,815.25x = 68,757,872.74
  5. Step 5: Solve for x
    x = 68,757,872.74/10,815.25
  6. Step 6: Final answer
    x = 6,357.49

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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.