Home / 12,515.63-17,253.77-8,531.64

Finding the Fourth Proportional to 12,515.63, 17,253.77 and 8,531.64

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Solution

The fourth proportional to 12,515.63, 17,253.77 and 8,531.64 is: 11,761.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515.63 : 17,253.77 = 8,531.64 : x
  2. Step 2: Convert to fraction form
    12,515.63/17,253.77 = 8,531.64/x
  3. Step 3: Cross multiply
    12,515.63x = 17,253.77 × 8,531.64
  4. Step 4: Simplify right side
    12,515.63x = 147,202,911.62
  5. Step 5: Solve for x
    x = 147,202,911.62/12,515.63
  6. Step 6: Final answer
    x = 11,761.53

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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.