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Finding the Fourth Proportional to 8,483.85, 12,721.22 and 2,935.55

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Solution

The fourth proportional to 8,483.85, 12,721.22 and 2,935.55 is: 4,401.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,483.85 : 12,721.22 = 2,935.55 : x
  2. Step 2: Convert to fraction form
    8,483.85/12,721.22 = 2,935.55/x
  3. Step 3: Cross multiply
    8,483.85x = 12,721.22 × 2,935.55
  4. Step 4: Simplify right side
    8,483.85x = 37,343,805.50
  5. Step 5: Solve for x
    x = 37,343,805.50/8,483.85
  6. Step 6: Final answer
    x = 4,401.75

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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.