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Finding the Fourth Proportional to 8,754.45, 13,133.63 and 3,207.68

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Solution

The fourth proportional to 8,754.45, 13,133.63 and 3,207.68 is: 4,812.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,754.45 : 13,133.63 = 3,207.68 : x
  2. Step 2: Convert to fraction form
    8,754.45/13,133.63 = 3,207.68/x
  3. Step 3: Cross multiply
    8,754.45x = 13,133.63 × 3,207.68
  4. Step 4: Simplify right side
    8,754.45x = 42,128,482.28
  5. Step 5: Solve for x
    x = 42,128,482.28/8,754.45
  6. Step 6: Final answer
    x = 4,812.24

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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.