Home / 8,342.84-11,511.12-4,986.92

Finding the Fourth Proportional to 8,342.84, 11,511.12 and 4,986.92

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Solution

The fourth proportional to 8,342.84, 11,511.12 and 4,986.92 is: 6,880.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,342.84 : 11,511.12 = 4,986.92 : x
  2. Step 2: Convert to fraction form
    8,342.84/11,511.12 = 4,986.92/x
  3. Step 3: Cross multiply
    8,342.84x = 11,511.12 × 4,986.92
  4. Step 4: Simplify right side
    8,342.84x = 57,405,034.55
  5. Step 5: Solve for x
    x = 57,405,034.55/8,342.84
  6. Step 6: Final answer
    x = 6,880.75

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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.