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Finding the Fourth Proportional to 8,763.88, 12,094.40 and 4,987.60

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Solution

The fourth proportional to 8,763.88, 12,094.40 and 4,987.60 is: 6,883.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,763.88 : 12,094.40 = 4,987.60 : x
  2. Step 2: Convert to fraction form
    8,763.88/12,094.40 = 4,987.60/x
  3. Step 3: Cross multiply
    8,763.88x = 12,094.40 × 4,987.60
  4. Step 4: Simplify right side
    8,763.88x = 60,322,029.44
  5. Step 5: Solve for x
    x = 60,322,029.44/8,763.88
  6. Step 6: Final answer
    x = 6,883.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.