Home / 12,237.76-16,887.88-6,648.80

Finding the Fourth Proportional to 12,237.76, 16,887.88 and 6,648.80

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Solution

The fourth proportional to 12,237.76, 16,887.88 and 6,648.80 is: 9,175.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,237.76 : 16,887.88 = 6,648.80 : x
  2. Step 2: Convert to fraction form
    12,237.76/16,887.88 = 6,648.80/x
  3. Step 3: Cross multiply
    12,237.76x = 16,887.88 × 6,648.80
  4. Step 4: Simplify right side
    12,237.76x = 112,284,136.54
  5. Step 5: Solve for x
    x = 112,284,136.54/12,237.76
  6. Step 6: Final answer
    x = 9,175.22

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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.