Home / 11,909.32-16,438.26-7,193.92

Finding the Fourth Proportional to 11,909.32, 16,438.26 and 7,193.92

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Solution

The fourth proportional to 11,909.32, 16,438.26 and 7,193.92 is: 9,929.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,909.32 : 16,438.26 = 7,193.92 : x
  2. Step 2: Convert to fraction form
    11,909.32/16,438.26 = 7,193.92/x
  3. Step 3: Cross multiply
    11,909.32x = 16,438.26 × 7,193.92
  4. Step 4: Simplify right side
    11,909.32x = 118,255,527.38
  5. Step 5: Solve for x
    x = 118,255,527.38/11,909.32
  6. Step 6: Final answer
    x = 9,929.66

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Half scale
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Double scale
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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.