Home / 13,461.71-20,191.41-8,195.35

Finding the Fourth Proportional to 13,461.71, 20,191.41 and 8,195.35

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Solution

The fourth proportional to 13,461.71, 20,191.41 and 8,195.35 is: 12,292.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,461.71 : 20,191.41 = 8,195.35 : x
  2. Step 2: Convert to fraction form
    13,461.71/20,191.41 = 8,195.35/x
  3. Step 3: Cross multiply
    13,461.71x = 20,191.41 × 8,195.35
  4. Step 4: Simplify right side
    13,461.71x = 165,475,671.94
  5. Step 5: Solve for x
    x = 165,475,671.94/13,461.71
  6. Step 6: Final answer
    x = 12,292.32

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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.