Home / 11,963.30-16,509.42-6,658.10

Finding the Fourth Proportional to 11,963.30, 16,509.42 and 6,658.10

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Solution

The fourth proportional to 11,963.30, 16,509.42 and 6,658.10 is: 9,188.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,963.30 : 16,509.42 = 6,658.10 : x
  2. Step 2: Convert to fraction form
    11,963.30/16,509.42 = 6,658.10/x
  3. Step 3: Cross multiply
    11,963.30x = 16,509.42 × 6,658.10
  4. Step 4: Simplify right side
    11,963.30x = 109,921,348.67
  5. Step 5: Solve for x
    x = 109,921,348.67/11,963.30
  6. Step 6: Final answer
    x = 9,188.22

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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.