Home / 13,212.18-19,793.77-9,456.21

Finding the Fourth Proportional to 13,212.18, 19,793.77 and 9,456.21

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Solution

The fourth proportional to 13,212.18, 19,793.77 and 9,456.21 is: 14,166.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.18 : 19,793.77 = 9,456.21 : x
  2. Step 2: Convert to fraction form
    13,212.18/19,793.77 = 9,456.21/x
  3. Step 3: Cross multiply
    13,212.18x = 19,793.77 × 9,456.21
  4. Step 4: Simplify right side
    13,212.18x = 187,174,022.17
  5. Step 5: Solve for x
    x = 187,174,022.17/13,212.18
  6. Step 6: Final answer
    x = 14,166.78

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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.