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Finding the Fourth Proportional to 8,763.80, 13,124.74 and 5,054.78

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Solution

The fourth proportional to 8,763.80, 13,124.74 and 5,054.78 is: 7,570.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,763.80 : 13,124.74 = 5,054.78 : x
  2. Step 2: Convert to fraction form
    8,763.80/13,124.74 = 5,054.78/x
  3. Step 3: Cross multiply
    8,763.80x = 13,124.74 × 5,054.78
  4. Step 4: Simplify right side
    8,763.80x = 66,342,706.07
  5. Step 5: Solve for x
    x = 66,342,706.07/8,763.80
  6. Step 6: Final answer
    x = 7,570.09

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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.