Home / 6,136.90-9,205.35-5,661.70

Finding the Fourth Proportional to 6,136.90, 9,205.35 and 5,661.70

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Solution

The fourth proportional to 6,136.90, 9,205.35 and 5,661.70 is: 8,492.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,136.90 : 9,205.35 = 5,661.70 : x
  2. Step 2: Convert to fraction form
    6,136.90/9,205.35 = 5,661.70/x
  3. Step 3: Cross multiply
    6,136.90x = 9,205.35 × 5,661.70
  4. Step 4: Simplify right side
    6,136.90x = 52,117,930.10
  5. Step 5: Solve for x
    x = 52,117,930.10/6,136.90
  6. Step 6: Final answer
    x = 8,492.55

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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.