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Finding the Fourth Proportional to 12,059.57, 16,641.80 and 6,681.78

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Solution

The fourth proportional to 12,059.57, 16,641.80 and 6,681.78 is: 9,220.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,059.57 : 16,641.80 = 6,681.78 : x
  2. Step 2: Convert to fraction form
    12,059.57/16,641.80 = 6,681.78/x
  3. Step 3: Cross multiply
    12,059.57x = 16,641.80 × 6,681.78
  4. Step 4: Simplify right side
    12,059.57x = 111,196,813.00
  5. Step 5: Solve for x
    x = 111,196,813.00/12,059.57
  6. Step 6: Final answer
    x = 9,220.63

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Half scale
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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.