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Finding the Fourth Proportional to 9,195.30, 13,809.15 and 8,903.70

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Solution

The fourth proportional to 9,195.30, 13,809.15 and 8,903.70 is: 13,371.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,195.30 : 13,809.15 = 8,903.70 : x
  2. Step 2: Convert to fraction form
    9,195.30/13,809.15 = 8,903.70/x
  3. Step 3: Cross multiply
    9,195.30x = 13,809.15 × 8,903.70
  4. Step 4: Simplify right side
    9,195.30x = 122,952,528.86
  5. Step 5: Solve for x
    x = 122,952,528.86/9,195.30
  6. Step 6: Final answer
    x = 13,371.24

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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.