Home / 8,472.06-12,705.81-3,540.69

Finding the Fourth Proportional to 8,472.06, 12,705.81 and 3,540.69

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Solution

The fourth proportional to 8,472.06, 12,705.81 and 3,540.69 is: 5,310.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472.06 : 12,705.81 = 3,540.69 : x
  2. Step 2: Convert to fraction form
    8,472.06/12,705.81 = 3,540.69/x
  3. Step 3: Cross multiply
    8,472.06x = 12,705.81 × 3,540.69
  4. Step 4: Simplify right side
    8,472.06x = 44,987,334.41
  5. Step 5: Solve for x
    x = 44,987,334.41/8,472.06
  6. Step 6: Final answer
    x = 5,310.08

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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.