Home / 9,634.11-13,275.81-8,121.81

Finding the Fourth Proportional to 9,634.11, 13,275.81 and 8,121.81

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Solution

The fourth proportional to 9,634.11, 13,275.81 and 8,121.81 is: 11,191.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,634.11 : 13,275.81 = 8,121.81 : x
  2. Step 2: Convert to fraction form
    9,634.11/13,275.81 = 8,121.81/x
  3. Step 3: Cross multiply
    9,634.11x = 13,275.81 × 8,121.81
  4. Step 4: Simplify right side
    9,634.11x = 107,823,606.42
  5. Step 5: Solve for x
    x = 107,823,606.42/9,634.11
  6. Step 6: Final answer
    x = 11,191.86

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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.