Home / 12,195.18-16,829.91-6,890.22

Finding the Fourth Proportional to 12,195.18, 16,829.91 and 6,890.22

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Solution

The fourth proportional to 12,195.18, 16,829.91 and 6,890.22 is: 9,508.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195.18 : 16,829.91 = 6,890.22 : x
  2. Step 2: Convert to fraction form
    12,195.18/16,829.91 = 6,890.22/x
  3. Step 3: Cross multiply
    12,195.18x = 16,829.91 × 6,890.22
  4. Step 4: Simplify right side
    12,195.18x = 115,961,782.48
  5. Step 5: Solve for x
    x = 115,961,782.48/12,195.18
  6. Step 6: Final answer
    x = 9,508.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.