Home / 13,220.35-19,829.17-4,455.34

Finding the Fourth Proportional to 13,220.35, 19,829.17 and 4,455.34

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Solution

The fourth proportional to 13,220.35, 19,829.17 and 4,455.34 is: 6,682.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.35 : 19,829.17 = 4,455.34 : x
  2. Step 2: Convert to fraction form
    13,220.35/19,829.17 = 4,455.34/x
  3. Step 3: Cross multiply
    13,220.35x = 19,829.17 × 4,455.34
  4. Step 4: Simplify right side
    13,220.35x = 88,345,694.27
  5. Step 5: Solve for x
    x = 88,345,694.27/13,220.35
  6. Step 6: Final answer
    x = 6,682.55

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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.