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Finding the Fourth Proportional to 10,811.47, 14,914.14 and 8,797.13

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Solution

The fourth proportional to 10,811.47, 14,914.14 and 8,797.13 is: 12,135.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,811.47 : 14,914.14 = 8,797.13 : x
  2. Step 2: Convert to fraction form
    10,811.47/14,914.14 = 8,797.13/x
  3. Step 3: Cross multiply
    10,811.47x = 14,914.14 × 8,797.13
  4. Step 4: Simplify right side
    10,811.47x = 131,201,628.42
  5. Step 5: Solve for x
    x = 131,201,628.42/10,811.47
  6. Step 6: Final answer
    x = 12,135.41

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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.