Home / 12,531.54-18,885.39-11,283.66

Finding the Fourth Proportional to 12,531.54, 18,885.39 and 11,283.66

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Solution

The fourth proportional to 12,531.54, 18,885.39 and 11,283.66 is: 17,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.54 : 18,885.39 = 11,283.66 : x
  2. Step 2: Convert to fraction form
    12,531.54/18,885.39 = 11,283.66/x
  3. Step 3: Cross multiply
    12,531.54x = 18,885.39 × 11,283.66
  4. Step 4: Simplify right side
    12,531.54x = 213,096,319.73
  5. Step 5: Solve for x
    x = 213,096,319.73/12,531.54
  6. Step 6: Final answer
    x = 17,004.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.