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Finding the Fourth Proportional to 8,973.71, 12,383.44 and 4,994.72

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Solution

The fourth proportional to 8,973.71, 12,383.44 and 4,994.72 is: 6,892.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,973.71 : 12,383.44 = 4,994.72 : x
  2. Step 2: Convert to fraction form
    8,973.71/12,383.44 = 4,994.72/x
  3. Step 3: Cross multiply
    8,973.71x = 12,383.44 × 4,994.72
  4. Step 4: Simplify right side
    8,973.71x = 61,851,741.03
  5. Step 5: Solve for x
    x = 61,851,741.03/8,973.71
  6. Step 6: Final answer
    x = 6,892.55

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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.