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Finding the Fourth Proportional to 9,986.92, 14,947.54 and 8,893.42

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Solution

The fourth proportional to 9,986.92, 14,947.54 and 8,893.42 is: 13,310.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,986.92 : 14,947.54 = 8,893.42 : x
  2. Step 2: Convert to fraction form
    9,986.92/14,947.54 = 8,893.42/x
  3. Step 3: Cross multiply
    9,986.92x = 14,947.54 × 8,893.42
  4. Step 4: Simplify right side
    9,986.92x = 132,934,751.19
  5. Step 5: Solve for x
    x = 132,934,751.19/9,986.92
  6. Step 6: Final answer
    x = 13,310.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.