Home / 12,146.78-16,759.63-6,841.60

Finding the Fourth Proportional to 12,146.78, 16,759.63 and 6,841.60

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Solution

The fourth proportional to 12,146.78, 16,759.63 and 6,841.60 is: 9,439.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,146.78 : 16,759.63 = 6,841.60 : x
  2. Step 2: Convert to fraction form
    12,146.78/16,759.63 = 6,841.60/x
  3. Step 3: Cross multiply
    12,146.78x = 16,759.63 × 6,841.60
  4. Step 4: Simplify right side
    12,146.78x = 114,662,684.61
  5. Step 5: Solve for x
    x = 114,662,684.61/12,146.78
  6. Step 6: Final answer
    x = 9,439.76

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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.