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Finding the Fourth Proportional to 12,247.72, 16,901.94 and 6,658.72

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Solution

The fourth proportional to 12,247.72, 16,901.94 and 6,658.72 is: 9,189.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,247.72 : 16,901.94 = 6,658.72 : x
  2. Step 2: Convert to fraction form
    12,247.72/16,901.94 = 6,658.72/x
  3. Step 3: Cross multiply
    12,247.72x = 16,901.94 × 6,658.72
  4. Step 4: Simplify right side
    12,247.72x = 112,545,285.92
  5. Step 5: Solve for x
    x = 112,545,285.92/12,247.72
  6. Step 6: Final answer
    x = 9,189.08

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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.