Home / 13,416.70-20,117.05-8,226.30

Finding the Fourth Proportional to 13,416.70, 20,117.05 and 8,226.30

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Solution

The fourth proportional to 13,416.70, 20,117.05 and 8,226.30 is: 12,334.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,416.70 : 20,117.05 = 8,226.30 : x
  2. Step 2: Convert to fraction form
    13,416.70/20,117.05 = 8,226.30/x
  3. Step 3: Cross multiply
    13,416.70x = 20,117.05 × 8,226.30
  4. Step 4: Simplify right side
    13,416.70x = 165,488,888.42
  5. Step 5: Solve for x
    x = 165,488,888.42/13,416.70
  6. Step 6: Final answer
    x = 12,334.54

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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.