Home / 7,136-9,836.88-6,135.92

Finding the Fourth Proportional to 7,136, 9,836.88 and 6,135.92

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Solution

The fourth proportional to 7,136, 9,836.88 and 6,135.92 is: 8,458.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136 : 9,836.88 = 6,135.92 : x
  2. Step 2: Convert to fraction form
    7,136/9,836.88 = 6,135.92/x
  3. Step 3: Cross multiply
    7,136x = 9,836.88 × 6,135.92
  4. Step 4: Simplify right side
    7,136x = 60,358,308.73
  5. Step 5: Solve for x
    x = 60,358,308.73/7,136
  6. Step 6: Final answer
    x = 8,458.28

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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.