Home / 8,328.25-12,498.54-3,945.70

Finding the Fourth Proportional to 8,328.25, 12,498.54 and 3,945.70

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Solution

The fourth proportional to 8,328.25, 12,498.54 and 3,945.70 is: 5,921.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,328.25 : 12,498.54 = 3,945.70 : x
  2. Step 2: Convert to fraction form
    8,328.25/12,498.54 = 3,945.70/x
  3. Step 3: Cross multiply
    8,328.25x = 12,498.54 × 3,945.70
  4. Step 4: Simplify right side
    8,328.25x = 49,315,489.28
  5. Step 5: Solve for x
    x = 49,315,489.28/8,328.25
  6. Step 6: Final answer
    x = 5,921.47

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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.