Home / 8,215.38-12,325.05-2,669.28

Finding the Fourth Proportional to 8,215.38, 12,325.05 and 2,669.28

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Solution

The fourth proportional to 8,215.38, 12,325.05 and 2,669.28 is: 4,004.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.38 : 12,325.05 = 2,669.28 : x
  2. Step 2: Convert to fraction form
    8,215.38/12,325.05 = 2,669.28/x
  3. Step 3: Cross multiply
    8,215.38x = 12,325.05 × 2,669.28
  4. Step 4: Simplify right side
    8,215.38x = 32,899,009.46
  5. Step 5: Solve for x
    x = 32,899,009.46/8,215.38
  6. Step 6: Final answer
    x = 4,004.56

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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.