Home / 13,417.70-20,118.55-8,227.30

Finding the Fourth Proportional to 13,417.70, 20,118.55 and 8,227.30

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Solution

The fourth proportional to 13,417.70, 20,118.55 and 8,227.30 is: 12,336.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.70 : 20,118.55 = 8,227.30 : x
  2. Step 2: Convert to fraction form
    13,417.70/20,118.55 = 8,227.30/x
  3. Step 3: Cross multiply
    13,417.70x = 20,118.55 × 8,227.30
  4. Step 4: Simplify right side
    13,417.70x = 165,521,346.42
  5. Step 5: Solve for x
    x = 165,521,346.42/13,417.70
  6. Step 6: Final answer
    x = 12,336.04

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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.