Home / 13,847.24-20,734.41-8,287.40

Finding the Fourth Proportional to 13,847.24, 20,734.41 and 8,287.40

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Solution

The fourth proportional to 13,847.24, 20,734.41 and 8,287.40 is: 12,409.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,847.24 : 20,734.41 = 8,287.40 : x
  2. Step 2: Convert to fraction form
    13,847.24/20,734.41 = 8,287.40/x
  3. Step 3: Cross multiply
    13,847.24x = 20,734.41 × 8,287.40
  4. Step 4: Simplify right side
    13,847.24x = 171,834,432.35
  5. Step 5: Solve for x
    x = 171,834,432.35/13,847.24
  6. Step 6: Final answer
    x = 12,409.29

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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.