Home / 13,465.11-18,584.66-8,087.78

Finding the Fourth Proportional to 13,465.11, 18,584.66 and 8,087.78

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Solution

The fourth proportional to 13,465.11, 18,584.66 and 8,087.78 is: 11,162.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,465.11 : 18,584.66 = 8,087.78 : x
  2. Step 2: Convert to fraction form
    13,465.11/18,584.66 = 8,087.78/x
  3. Step 3: Cross multiply
    13,465.11x = 18,584.66 × 8,087.78
  4. Step 4: Simplify right side
    13,465.11x = 150,308,603.60
  5. Step 5: Solve for x
    x = 150,308,603.60/13,465.11
  6. Step 6: Final answer
    x = 11,162.82

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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.