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Finding the Fourth Proportional to 12,293.64, 16,945.00 and 8,709.80

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Solution

The fourth proportional to 12,293.64, 16,945.00 and 8,709.80 is: 12,005.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,293.64 : 16,945.00 = 8,709.80 : x
  2. Step 2: Convert to fraction form
    12,293.64/16,945.00 = 8,709.80/x
  3. Step 3: Cross multiply
    12,293.64x = 16,945.00 × 8,709.80
  4. Step 4: Simplify right side
    12,293.64x = 147,587,454.50
  5. Step 5: Solve for x
    x = 147,587,454.50/12,293.64
  6. Step 6: Final answer
    x = 12,005.19

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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.