Home / 12,628.12-17,425.40-8,088.73

Finding the Fourth Proportional to 12,628.12, 17,425.40 and 8,088.73

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Solution

The fourth proportional to 12,628.12, 17,425.40 and 8,088.73 is: 11,161.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,628.12 : 17,425.40 = 8,088.73 : x
  2. Step 2: Convert to fraction form
    12,628.12/17,425.40 = 8,088.73/x
  3. Step 3: Cross multiply
    12,628.12x = 17,425.40 × 8,088.73
  4. Step 4: Simplify right side
    12,628.12x = 140,949,337.08
  5. Step 5: Solve for x
    x = 140,949,337.08/12,628.12
  6. Step 6: Final answer
    x = 11,161.55

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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.