Home / 12,152.94-18,188.25-7,475.92

Finding the Fourth Proportional to 12,152.94, 18,188.25 and 7,475.92

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Solution

The fourth proportional to 12,152.94, 18,188.25 and 7,475.92 is: 11,188.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,152.94 : 18,188.25 = 7,475.92 : x
  2. Step 2: Convert to fraction form
    12,152.94/18,188.25 = 7,475.92/x
  3. Step 3: Cross multiply
    12,152.94x = 18,188.25 × 7,475.92
  4. Step 4: Simplify right side
    12,152.94x = 135,973,879.59
  5. Step 5: Solve for x
    x = 135,973,879.59/12,152.94
  6. Step 6: Final answer
    x = 11,188.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.