Home / 11,963.79-16,510.28-6,658.49

Finding the Fourth Proportional to 11,963.79, 16,510.28 and 6,658.49

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Solution

The fourth proportional to 11,963.79, 16,510.28 and 6,658.49 is: 9,188.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,963.79 : 16,510.28 = 6,658.49 : x
  2. Step 2: Convert to fraction form
    11,963.79/16,510.28 = 6,658.49/x
  3. Step 3: Cross multiply
    11,963.79x = 16,510.28 × 6,658.49
  4. Step 4: Simplify right side
    11,963.79x = 109,933,418.43
  5. Step 5: Solve for x
    x = 109,933,418.43/11,963.79
  6. Step 6: Final answer
    x = 9,188.85

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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.