Home / 11,671.52-16,107.14-6,636.20

Finding the Fourth Proportional to 11,671.52, 16,107.14 and 6,636.20

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Solution

The fourth proportional to 11,671.52, 16,107.14 and 6,636.20 is: 9,158.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,671.52 : 16,107.14 = 6,636.20 : x
  2. Step 2: Convert to fraction form
    11,671.52/16,107.14 = 6,636.20/x
  3. Step 3: Cross multiply
    11,671.52x = 16,107.14 × 6,636.20
  4. Step 4: Simplify right side
    11,671.52x = 106,890,163.17
  5. Step 5: Solve for x
    x = 106,890,163.17/11,671.52
  6. Step 6: Final answer
    x = 9,158.21

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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.