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Finding the Fourth Proportional to 14,958, 20,639.88 and 9,577.44

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Solution

The fourth proportional to 14,958, 20,639.88 and 9,577.44 is: 13,215.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,958 : 20,639.88 = 9,577.44 : x
  2. Step 2: Convert to fraction form
    14,958/20,639.88 = 9,577.44/x
  3. Step 3: Cross multiply
    14,958x = 20,639.88 × 9,577.44
  4. Step 4: Simplify right side
    14,958x = 197,677,212.31
  5. Step 5: Solve for x
    x = 197,677,212.31/14,958
  6. Step 6: Final answer
    x = 13,215.48

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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.