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Finding the Fourth Proportional to 9,293.80, 13,940.70 and 8,890.60

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Solution

The fourth proportional to 9,293.80, 13,940.70 and 8,890.60 is: 13,335.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,293.80 : 13,940.70 = 8,890.60 : x
  2. Step 2: Convert to fraction form
    9,293.80/13,940.70 = 8,890.60/x
  3. Step 3: Cross multiply
    9,293.80x = 13,940.70 × 8,890.60
  4. Step 4: Simplify right side
    9,293.80x = 123,941,187.42
  5. Step 5: Solve for x
    x = 123,941,187.42/9,293.80
  6. Step 6: Final answer
    x = 13,335.90

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Similar ratio
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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.