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Finding the Fourth Proportional to 9,651.91, 13,309.06 and 6,288.49

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Solution

The fourth proportional to 9,651.91, 13,309.06 and 6,288.49 is: 8,671.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,651.91 : 13,309.06 = 6,288.49 : x
  2. Step 2: Convert to fraction form
    9,651.91/13,309.06 = 6,288.49/x
  3. Step 3: Cross multiply
    9,651.91x = 13,309.06 × 6,288.49
  4. Step 4: Simplify right side
    9,651.91x = 83,693,890.72
  5. Step 5: Solve for x
    x = 83,693,890.72/9,651.91
  6. Step 6: Final answer
    x = 8,671.23

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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.