Home / 11,189.28-15,440.88-6,153.50

Finding the Fourth Proportional to 11,189.28, 15,440.88 and 6,153.50

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Solution

The fourth proportional to 11,189.28, 15,440.88 and 6,153.50 is: 8,491.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,189.28 : 15,440.88 = 6,153.50 : x
  2. Step 2: Convert to fraction form
    11,189.28/15,440.88 = 6,153.50/x
  3. Step 3: Cross multiply
    11,189.28x = 15,440.88 × 6,153.50
  4. Step 4: Simplify right side
    11,189.28x = 95,015,377.88
  5. Step 5: Solve for x
    x = 95,015,377.88/11,189.28
  6. Step 6: Final answer
    x = 8,491.64

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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.