Home / 12,634.80-17,436.84-7,331.40

Finding the Fourth Proportional to 12,634.80, 17,436.84 and 7,331.40

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Solution

The fourth proportional to 12,634.80, 17,436.84 and 7,331.40 is: 10,117.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,634.80 : 17,436.84 = 7,331.40 : x
  2. Step 2: Convert to fraction form
    12,634.80/17,436.84 = 7,331.40/x
  3. Step 3: Cross multiply
    12,634.80x = 17,436.84 × 7,331.40
  4. Step 4: Simplify right side
    12,634.80x = 127,836,448.78
  5. Step 5: Solve for x
    x = 127,836,448.78/12,634.80
  6. Step 6: Final answer
    x = 10,117.81

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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.