Home / 9,327.94-12,872.56-5,136.19

Finding the Fourth Proportional to 9,327.94, 12,872.56 and 5,136.19

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Solution

The fourth proportional to 9,327.94, 12,872.56 and 5,136.19 is: 7,087.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,327.94 : 12,872.56 = 5,136.19 : x
  2. Step 2: Convert to fraction form
    9,327.94/12,872.56 = 5,136.19/x
  3. Step 3: Cross multiply
    9,327.94x = 12,872.56 × 5,136.19
  4. Step 4: Simplify right side
    9,327.94x = 66,115,913.95
  5. Step 5: Solve for x
    x = 66,115,913.95/9,327.94
  6. Step 6: Final answer
    x = 7,087.94

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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.