Home / 8,136.73-11,230.59-5,299.21

Finding the Fourth Proportional to 8,136.73, 11,230.59 and 5,299.21

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Solution

The fourth proportional to 8,136.73, 11,230.59 and 5,299.21 is: 7,314.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,136.73 : 11,230.59 = 5,299.21 : x
  2. Step 2: Convert to fraction form
    8,136.73/11,230.59 = 5,299.21/x
  3. Step 3: Cross multiply
    8,136.73x = 11,230.59 × 5,299.21
  4. Step 4: Simplify right side
    8,136.73x = 59,513,254.83
  5. Step 5: Solve for x
    x = 59,513,254.83/8,136.73
  6. Step 6: Final answer
    x = 7,314.15

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.