Home / 12,286.98-16,955.28-7,251.39

Finding the Fourth Proportional to 12,286.98, 16,955.28 and 7,251.39

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Solution

The fourth proportional to 12,286.98, 16,955.28 and 7,251.39 is: 10,006.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286.98 : 16,955.28 = 7,251.39 : x
  2. Step 2: Convert to fraction form
    12,286.98/16,955.28 = 7,251.39/x
  3. Step 3: Cross multiply
    12,286.98x = 16,955.28 × 7,251.39
  4. Step 4: Simplify right side
    12,286.98x = 122,949,347.84
  5. Step 5: Solve for x
    x = 122,949,347.84/12,286.98
  6. Step 6: Final answer
    x = 10,006.47

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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.