Home / 12,836.98-17,708.58-8,860.30

Finding the Fourth Proportional to 12,836.98, 17,708.58 and 8,860.30

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Solution

The fourth proportional to 12,836.98, 17,708.58 and 8,860.30 is: 12,222.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,836.98 : 17,708.58 = 8,860.30 : x
  2. Step 2: Convert to fraction form
    12,836.98/17,708.58 = 8,860.30/x
  3. Step 3: Cross multiply
    12,836.98x = 17,708.58 × 8,860.30
  4. Step 4: Simplify right side
    12,836.98x = 156,903,331.37
  5. Step 5: Solve for x
    x = 156,903,331.37/12,836.98
  6. Step 6: Final answer
    x = 12,222.76

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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.