Home / 8,370.36-12,551.22-3,439.08

Finding the Fourth Proportional to 8,370.36, 12,551.22 and 3,439.08

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Solution

The fourth proportional to 8,370.36, 12,551.22 and 3,439.08 is: 5,156.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,370.36 : 12,551.22 = 3,439.08 : x
  2. Step 2: Convert to fraction form
    8,370.36/12,551.22 = 3,439.08/x
  3. Step 3: Cross multiply
    8,370.36x = 12,551.22 × 3,439.08
  4. Step 4: Simplify right side
    8,370.36x = 43,164,649.68
  5. Step 5: Solve for x
    x = 43,164,649.68/8,370.36
  6. Step 6: Final answer
    x = 5,156.85

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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.