Home / 10,104.12-15,128.24-5,163.12

Finding the Fourth Proportional to 10,104.12, 15,128.24 and 5,163.12

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Solution

The fourth proportional to 10,104.12, 15,128.24 and 5,163.12 is: 7,730.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,104.12 : 15,128.24 = 5,163.12 : x
  2. Step 2: Convert to fraction form
    10,104.12/15,128.24 = 5,163.12/x
  3. Step 3: Cross multiply
    10,104.12x = 15,128.24 × 5,163.12
  4. Step 4: Simplify right side
    10,104.12x = 78,108,892.69
  5. Step 5: Solve for x
    x = 78,108,892.69/10,104.12
  6. Step 6: Final answer
    x = 7,730.40

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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.