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Finding the Fourth Proportional to 8,717.70, 13,069.18 and 3,783.62

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Solution

The fourth proportional to 8,717.70, 13,069.18 and 3,783.62 is: 5,672.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.70 : 13,069.18 = 3,783.62 : x
  2. Step 2: Convert to fraction form
    8,717.70/13,069.18 = 3,783.62/x
  3. Step 3: Cross multiply
    8,717.70x = 13,069.18 × 3,783.62
  4. Step 4: Simplify right side
    8,717.70x = 49,448,810.83
  5. Step 5: Solve for x
    x = 49,448,810.83/8,717.70
  6. Step 6: Final answer
    x = 5,672.23

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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.