Home / 8,121.98-11,208.84-4,585.80

Finding the Fourth Proportional to 8,121.98, 11,208.84 and 4,585.80

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Solution

The fourth proportional to 8,121.98, 11,208.84 and 4,585.80 is: 6,328.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121.98 : 11,208.84 = 4,585.80 : x
  2. Step 2: Convert to fraction form
    8,121.98/11,208.84 = 4,585.80/x
  3. Step 3: Cross multiply
    8,121.98x = 11,208.84 × 4,585.80
  4. Step 4: Simplify right side
    8,121.98x = 51,401,498.47
  5. Step 5: Solve for x
    x = 51,401,498.47/8,121.98
  6. Step 6: Final answer
    x = 6,328.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.