Home / 8,270.19-12,405.49-2,114.19

Finding the Fourth Proportional to 8,270.19, 12,405.49 and 2,114.19

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Solution

The fourth proportional to 8,270.19, 12,405.49 and 2,114.19 is: 3,171.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,270.19 : 12,405.49 = 2,114.19 : x
  2. Step 2: Convert to fraction form
    8,270.19/12,405.49 = 2,114.19/x
  3. Step 3: Cross multiply
    8,270.19x = 12,405.49 × 2,114.19
  4. Step 4: Simplify right side
    8,270.19x = 26,227,562.90
  5. Step 5: Solve for x
    x = 26,227,562.90/8,270.19
  6. Step 6: Final answer
    x = 3,171.34

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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.