Home / 12,540.12-17,265.96-10,647.72

Finding the Fourth Proportional to 12,540.12, 17,265.96 and 10,647.72

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Solution

The fourth proportional to 12,540.12, 17,265.96 and 10,647.72 is: 14,660.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,540.12 : 17,265.96 = 10,647.72 : x
  2. Step 2: Convert to fraction form
    12,540.12/17,265.96 = 10,647.72/x
  3. Step 3: Cross multiply
    12,540.12x = 17,265.96 × 10,647.72
  4. Step 4: Simplify right side
    12,540.12x = 183,843,107.61
  5. Step 5: Solve for x
    x = 183,843,107.61/12,540.12
  6. Step 6: Final answer
    x = 14,660.39

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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.