Home / 11,136.30-16,704.45-6,989.10

Finding the Fourth Proportional to 11,136.30, 16,704.45 and 6,989.10

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Solution

The fourth proportional to 11,136.30, 16,704.45 and 6,989.10 is: 10,483.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,136.30 : 16,704.45 = 6,989.10 : x
  2. Step 2: Convert to fraction form
    11,136.30/16,704.45 = 6,989.10/x
  3. Step 3: Cross multiply
    11,136.30x = 16,704.45 × 6,989.10
  4. Step 4: Simplify right side
    11,136.30x = 116,749,071.50
  5. Step 5: Solve for x
    x = 116,749,071.50/11,136.30
  6. Step 6: Final answer
    x = 10,483.65

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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.