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Finding the Fourth Proportional to 8,339.76, 12,511.16 and 3,957.17

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Solution

The fourth proportional to 8,339.76, 12,511.16 and 3,957.17 is: 5,936.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,339.76 : 12,511.16 = 3,957.17 : x
  2. Step 2: Convert to fraction form
    8,339.76/12,511.16 = 3,957.17/x
  3. Step 3: Cross multiply
    8,339.76x = 12,511.16 × 3,957.17
  4. Step 4: Simplify right side
    8,339.76x = 49,508,798.51
  5. Step 5: Solve for x
    x = 49,508,798.51/8,339.76
  6. Step 6: Final answer
    x = 5,936.48

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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.