Home / 12,250.28-16,900.35-7,999.88

Finding the Fourth Proportional to 12,250.28, 16,900.35 and 7,999.88

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Solution

The fourth proportional to 12,250.28, 16,900.35 and 7,999.88 is: 11,036.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,250.28 : 16,900.35 = 7,999.88 : x
  2. Step 2: Convert to fraction form
    12,250.28/16,900.35 = 7,999.88/x
  3. Step 3: Cross multiply
    12,250.28x = 16,900.35 × 7,999.88
  4. Step 4: Simplify right side
    12,250.28x = 135,200,771.96
  5. Step 5: Solve for x
    x = 135,200,771.96/12,250.28
  6. Step 6: Final answer
    x = 11,036.55

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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.