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Finding the Fourth Proportional to 12,255.66, 16,915.82 and 6,953.58

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Solution

The fourth proportional to 12,255.66, 16,915.82 and 6,953.58 is: 9,597.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,255.66 : 16,915.82 = 6,953.58 : x
  2. Step 2: Convert to fraction form
    12,255.66/16,915.82 = 6,953.58/x
  3. Step 3: Cross multiply
    12,255.66x = 16,915.82 × 6,953.58
  4. Step 4: Simplify right side
    12,255.66x = 117,625,472.87
  5. Step 5: Solve for x
    x = 117,625,472.87/12,255.66
  6. Step 6: Final answer
    x = 9,597.64

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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.