Home / 8,215.10-12,322.92-2,292.13

Finding the Fourth Proportional to 8,215.10, 12,322.92 and 2,292.13

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Solution

The fourth proportional to 8,215.10, 12,322.92 and 2,292.13 is: 3,438.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.10 : 12,322.92 = 2,292.13 : x
  2. Step 2: Convert to fraction form
    8,215.10/12,322.92 = 2,292.13/x
  3. Step 3: Cross multiply
    8,215.10x = 12,322.92 × 2,292.13
  4. Step 4: Simplify right side
    8,215.10x = 28,245,703.81
  5. Step 5: Solve for x
    x = 28,245,703.81/8,215.10
  6. Step 6: Final answer
    x = 3,438.27

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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.