Home / 13,566.18-20,336.31-8,620.50

Finding the Fourth Proportional to 13,566.18, 20,336.31 and 8,620.50

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Solution

The fourth proportional to 13,566.18, 20,336.31 and 8,620.50 is: 12,922.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,566.18 : 20,336.31 = 8,620.50 : x
  2. Step 2: Convert to fraction form
    13,566.18/20,336.31 = 8,620.50/x
  3. Step 3: Cross multiply
    13,566.18x = 20,336.31 × 8,620.50
  4. Step 4: Simplify right side
    13,566.18x = 175,309,160.36
  5. Step 5: Solve for x
    x = 175,309,160.36/13,566.18
  6. Step 6: Final answer
    x = 12,922.51

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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.