Home / 18,591.40-25,655.43-11,517.67

Finding the Fourth Proportional to 18,591.40, 25,655.43 and 11,517.67

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Solution

The fourth proportional to 18,591.40, 25,655.43 and 11,517.67 is: 15,893.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,591.40 : 25,655.43 = 11,517.67 : x
  2. Step 2: Convert to fraction form
    18,591.40/25,655.43 = 11,517.67/x
  3. Step 3: Cross multiply
    18,591.40x = 25,655.43 × 11,517.67
  4. Step 4: Simplify right side
    18,591.40x = 295,490,776.45
  5. Step 5: Solve for x
    x = 295,490,776.45/18,591.40
  6. Step 6: Final answer
    x = 15,893.95

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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.