Home / 10,125.68-15,188.52-3,105.72

Finding the Fourth Proportional to 10,125.68, 15,188.52 and 3,105.72

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Solution

The fourth proportional to 10,125.68, 15,188.52 and 3,105.72 is: 4,658.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,125.68 : 15,188.52 = 3,105.72 : x
  2. Step 2: Convert to fraction form
    10,125.68/15,188.52 = 3,105.72/x
  3. Step 3: Cross multiply
    10,125.68x = 15,188.52 × 3,105.72
  4. Step 4: Simplify right side
    10,125.68x = 47,171,214.39
  5. Step 5: Solve for x
    x = 47,171,214.39/10,125.68
  6. Step 6: Final answer
    x = 4,658.57

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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.