Home / 13,591.18-18,756.83-8,214.96

Finding the Fourth Proportional to 13,591.18, 18,756.83 and 8,214.96

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Solution

The fourth proportional to 13,591.18, 18,756.83 and 8,214.96 is: 11,337.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591.18 : 18,756.83 = 8,214.96 : x
  2. Step 2: Convert to fraction form
    13,591.18/18,756.83 = 8,214.96/x
  3. Step 3: Cross multiply
    13,591.18x = 18,756.83 × 8,214.96
  4. Step 4: Simplify right side
    13,591.18x = 154,086,608.18
  5. Step 5: Solve for x
    x = 154,086,608.18/13,591.18
  6. Step 6: Final answer
    x = 11,337.25

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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.