Home / 13,566.90-20,338.20-8,889.15

Finding the Fourth Proportional to 13,566.90, 20,338.20 and 8,889.15

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Solution

The fourth proportional to 13,566.90, 20,338.20 and 8,889.15 is: 13,325.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,566.90 : 20,338.20 = 8,889.15 : x
  2. Step 2: Convert to fraction form
    13,566.90/20,338.20 = 8,889.15/x
  3. Step 3: Cross multiply
    13,566.90x = 20,338.20 × 8,889.15
  4. Step 4: Simplify right side
    13,566.90x = 180,789,310.53
  5. Step 5: Solve for x
    x = 180,789,310.53/13,566.90
  6. Step 6: Final answer
    x = 13,325.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.