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Finding the Fourth Proportional to 9,976.82, 14,889.37 and 8,869.65

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Solution

The fourth proportional to 9,976.82, 14,889.37 and 8,869.65 is: 13,237.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,976.82 : 14,889.37 = 8,869.65 : x
  2. Step 2: Convert to fraction form
    9,976.82/14,889.37 = 8,869.65/x
  3. Step 3: Cross multiply
    9,976.82x = 14,889.37 × 8,869.65
  4. Step 4: Simplify right side
    9,976.82x = 132,063,522.99
  5. Step 5: Solve for x
    x = 132,063,522.99/9,976.82
  6. Step 6: Final answer
    x = 13,237.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.