Home / 11,951.12-16,493.28-7,235.84

Finding the Fourth Proportional to 11,951.12, 16,493.28 and 7,235.84

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Solution

The fourth proportional to 11,951.12, 16,493.28 and 7,235.84 is: 9,985.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,951.12 : 16,493.28 = 7,235.84 : x
  2. Step 2: Convert to fraction form
    11,951.12/16,493.28 = 7,235.84/x
  3. Step 3: Cross multiply
    11,951.12x = 16,493.28 × 7,235.84
  4. Step 4: Simplify right side
    11,951.12x = 119,342,735.16
  5. Step 5: Solve for x
    x = 119,342,735.16/11,951.12
  6. Step 6: Final answer
    x = 9,985.90

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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.