Home / 8,746.40-13,121.20-3,552.80

Finding the Fourth Proportional to 8,746.40, 13,121.20 and 3,552.80

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Solution

The fourth proportional to 8,746.40, 13,121.20 and 3,552.80 is: 5,329.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,746.40 : 13,121.20 = 3,552.80 : x
  2. Step 2: Convert to fraction form
    8,746.40/13,121.20 = 3,552.80/x
  3. Step 3: Cross multiply
    8,746.40x = 13,121.20 × 3,552.80
  4. Step 4: Simplify right side
    8,746.40x = 46,616,999.36
  5. Step 5: Solve for x
    x = 46,616,999.36/8,746.40
  6. Step 6: Final answer
    x = 5,329.85

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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.