Home / 12,816.96-19,213.92-5,031.36

Finding the Fourth Proportional to 12,816.96, 19,213.92 and 5,031.36

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Solution

The fourth proportional to 12,816.96, 19,213.92 and 5,031.36 is: 7,542.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,816.96 : 19,213.92 = 5,031.36 : x
  2. Step 2: Convert to fraction form
    12,816.96/19,213.92 = 5,031.36/x
  3. Step 3: Cross multiply
    12,816.96x = 19,213.92 × 5,031.36
  4. Step 4: Simplify right side
    12,816.96x = 96,672,148.53
  5. Step 5: Solve for x
    x = 96,672,148.53/12,816.96
  6. Step 6: Final answer
    x = 7,542.52

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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.