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Finding the Fourth Proportional to 8,873.86, 13,310.19 and 3,943.78

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Solution

The fourth proportional to 8,873.86, 13,310.19 and 3,943.78 is: 5,915.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,873.86 : 13,310.19 = 3,943.78 : x
  2. Step 2: Convert to fraction form
    8,873.86/13,310.19 = 3,943.78/x
  3. Step 3: Cross multiply
    8,873.86x = 13,310.19 × 3,943.78
  4. Step 4: Simplify right side
    8,873.86x = 52,492,461.12
  5. Step 5: Solve for x
    x = 52,492,461.12/8,873.86
  6. Step 6: Final answer
    x = 5,915.40

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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.