Home / 11,106.11-15,318.92-7,132.05

Finding the Fourth Proportional to 11,106.11, 15,318.92 and 7,132.05

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Solution

The fourth proportional to 11,106.11, 15,318.92 and 7,132.05 is: 9,837.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,106.11 : 15,318.92 = 7,132.05 : x
  2. Step 2: Convert to fraction form
    11,106.11/15,318.92 = 7,132.05/x
  3. Step 3: Cross multiply
    11,106.11x = 15,318.92 × 7,132.05
  4. Step 4: Simplify right side
    11,106.11x = 109,255,321.22
  5. Step 5: Solve for x
    x = 109,255,321.22/11,106.11
  6. Step 6: Final answer
    x = 9,837.40

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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.