Home / 10,124.22-15,186.79-3,103.72

Finding the Fourth Proportional to 10,124.22, 15,186.79 and 3,103.72

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Solution

The fourth proportional to 10,124.22, 15,186.79 and 3,103.72 is: 4,655.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,124.22 : 15,186.79 = 3,103.72 : x
  2. Step 2: Convert to fraction form
    10,124.22/15,186.79 = 3,103.72/x
  3. Step 3: Cross multiply
    10,124.22x = 15,186.79 × 3,103.72
  4. Step 4: Simplify right side
    10,124.22x = 47,135,555.08
  5. Step 5: Solve for x
    x = 47,135,555.08/10,124.22
  6. Step 6: Final answer
    x = 4,655.72

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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.