Home / 11,963.91-16,509.85-6,658.62

Finding the Fourth Proportional to 11,963.91, 16,509.85 and 6,658.62

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Solution

The fourth proportional to 11,963.91, 16,509.85 and 6,658.62 is: 9,188.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,963.91 : 16,509.85 = 6,658.62 : x
  2. Step 2: Convert to fraction form
    11,963.91/16,509.85 = 6,658.62/x
  3. Step 3: Cross multiply
    11,963.91x = 16,509.85 × 6,658.62
  4. Step 4: Simplify right side
    11,963.91x = 109,932,817.41
  5. Step 5: Solve for x
    x = 109,932,817.41/11,963.91
  6. Step 6: Final answer
    x = 9,188.70

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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.