Home / 12,342.39-17,014.78-8,799.45

Finding the Fourth Proportional to 12,342.39, 17,014.78 and 8,799.45

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Solution

The fourth proportional to 12,342.39, 17,014.78 and 8,799.45 is: 12,130.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,342.39 : 17,014.78 = 8,799.45 : x
  2. Step 2: Convert to fraction form
    12,342.39/17,014.78 = 8,799.45/x
  3. Step 3: Cross multiply
    12,342.39x = 17,014.78 × 8,799.45
  4. Step 4: Simplify right side
    12,342.39x = 149,720,705.87
  5. Step 5: Solve for x
    x = 149,720,705.87/12,342.39
  6. Step 6: Final answer
    x = 12,130.61

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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.