Home / 10,124.41-15,188.84-3,105.39

Finding the Fourth Proportional to 10,124.41, 15,188.84 and 3,105.39

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Solution

The fourth proportional to 10,124.41, 15,188.84 and 3,105.39 is: 4,658.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,124.41 : 15,188.84 = 3,105.39 : x
  2. Step 2: Convert to fraction form
    10,124.41/15,188.84 = 3,105.39/x
  3. Step 3: Cross multiply
    10,124.41x = 15,188.84 × 3,105.39
  4. Step 4: Simplify right side
    10,124.41x = 47,167,271.85
  5. Step 5: Solve for x
    x = 47,167,271.85/10,124.41
  6. Step 6: Final answer
    x = 4,658.77

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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.