Home / 12,540.08-17,384.54-11,874.28

Finding the Fourth Proportional to 12,540.08, 17,384.54 and 11,874.28

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Solution

The fourth proportional to 12,540.08, 17,384.54 and 11,874.28 is: 16,461.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,540.08 : 17,384.54 = 11,874.28 : x
  2. Step 2: Convert to fraction form
    12,540.08/17,384.54 = 11,874.28/x
  3. Step 3: Cross multiply
    12,540.08x = 17,384.54 × 11,874.28
  4. Step 4: Simplify right side
    12,540.08x = 206,428,895.63
  5. Step 5: Solve for x
    x = 206,428,895.63/12,540.08
  6. Step 6: Final answer
    x = 16,461.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.