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Finding the Fourth Proportional to 11,050, 15,236.04 and 7,900.88

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Solution

The fourth proportional to 11,050, 15,236.04 and 7,900.88 is: 10,893.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,050 : 15,236.04 = 7,900.88 : x
  2. Step 2: Convert to fraction form
    11,050/15,236.04 = 7,900.88/x
  3. Step 3: Cross multiply
    11,050x = 15,236.04 × 7,900.88
  4. Step 4: Simplify right side
    11,050x = 120,378,123.72
  5. Step 5: Solve for x
    x = 120,378,123.72/11,050
  6. Step 6: Final answer
    x = 10,893.95

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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.