Home / 13,636.71-20,445.60-6,960.24

Finding the Fourth Proportional to 13,636.71, 20,445.60 and 6,960.24

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Solution

The fourth proportional to 13,636.71, 20,445.60 and 6,960.24 is: 10,435.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.71 : 20,445.60 = 6,960.24 : x
  2. Step 2: Convert to fraction form
    13,636.71/20,445.60 = 6,960.24/x
  3. Step 3: Cross multiply
    13,636.71x = 20,445.60 × 6,960.24
  4. Step 4: Simplify right side
    13,636.71x = 142,306,282.94
  5. Step 5: Solve for x
    x = 142,306,282.94/13,636.71
  6. Step 6: Final answer
    x = 10,435.53

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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.