Home / 10,128.24-15,195.18-3,108.48

Finding the Fourth Proportional to 10,128.24, 15,195.18 and 3,108.48

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Solution

The fourth proportional to 10,128.24, 15,195.18 and 3,108.48 is: 4,663.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128.24 : 15,195.18 = 3,108.48 : x
  2. Step 2: Convert to fraction form
    10,128.24/15,195.18 = 3,108.48/x
  3. Step 3: Cross multiply
    10,128.24x = 15,195.18 × 3,108.48
  4. Step 4: Simplify right side
    10,128.24x = 47,233,913.13
  5. Step 5: Solve for x
    x = 47,233,913.13/10,128.24
  6. Step 6: Final answer
    x = 4,663.59

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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.