Home / 10,586.72-15,880.08-3,191.12

Finding the Fourth Proportional to 10,586.72, 15,880.08 and 3,191.12

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Solution

The fourth proportional to 10,586.72, 15,880.08 and 3,191.12 is: 4,786.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,586.72 : 15,880.08 = 3,191.12 : x
  2. Step 2: Convert to fraction form
    10,586.72/15,880.08 = 3,191.12/x
  3. Step 3: Cross multiply
    10,586.72x = 15,880.08 × 3,191.12
  4. Step 4: Simplify right side
    10,586.72x = 50,675,240.89
  5. Step 5: Solve for x
    x = 50,675,240.89/10,586.72
  6. Step 6: Final answer
    x = 4,786.68

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Half scale
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Double scale
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Similar ratio
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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.