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Finding the Fourth Proportional to 15,375.60, 23,067 and 4,987.35

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Solution

The fourth proportional to 15,375.60, 23,067 and 4,987.35 is: 7,482.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,375.60 : 23,067 = 4,987.35 : x
  2. Step 2: Convert to fraction form
    15,375.60/23,067 = 4,987.35/x
  3. Step 3: Cross multiply
    15,375.60x = 23,067 × 4,987.35
  4. Step 4: Simplify right side
    15,375.60x = 115,043,202.45
  5. Step 5: Solve for x
    x = 115,043,202.45/15,375.60
  6. Step 6: Final answer
    x = 7,482.19

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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.