Home / 13,400.10-20,100.15-8,216.10

Finding the Fourth Proportional to 13,400.10, 20,100.15 and 8,216.10

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Solution

The fourth proportional to 13,400.10, 20,100.15 and 8,216.10 is: 12,324.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,400.10 : 20,100.15 = 8,216.10 : x
  2. Step 2: Convert to fraction form
    13,400.10/20,100.15 = 8,216.10/x
  3. Step 3: Cross multiply
    13,400.10x = 20,100.15 × 8,216.10
  4. Step 4: Simplify right side
    13,400.10x = 165,144,842.42
  5. Step 5: Solve for x
    x = 165,144,842.42/13,400.10
  6. Step 6: Final answer
    x = 12,324.15

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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.