Home / 10,135.86-15,205.39-4,292.50

Finding the Fourth Proportional to 10,135.86, 15,205.39 and 4,292.50

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Solution

The fourth proportional to 10,135.86, 15,205.39 and 4,292.50 is: 6,439.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,135.86 : 15,205.39 = 4,292.50 : x
  2. Step 2: Convert to fraction form
    10,135.86/15,205.39 = 4,292.50/x
  3. Step 3: Cross multiply
    10,135.86x = 15,205.39 × 4,292.50
  4. Step 4: Simplify right side
    10,135.86x = 65,269,136.58
  5. Step 5: Solve for x
    x = 65,269,136.58/10,135.86
  6. Step 6: Final answer
    x = 6,439.43

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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.