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Finding the Fourth Proportional to 12,298.36, 16,985.90 and 8,956.12

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Solution

The fourth proportional to 12,298.36, 16,985.90 and 8,956.12 is: 12,369.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,298.36 : 16,985.90 = 8,956.12 : x
  2. Step 2: Convert to fraction form
    12,298.36/16,985.90 = 8,956.12/x
  3. Step 3: Cross multiply
    12,298.36x = 16,985.90 × 8,956.12
  4. Step 4: Simplify right side
    12,298.36x = 152,127,629.00
  5. Step 5: Solve for x
    x = 152,127,629.00/12,298.36
  6. Step 6: Final answer
    x = 12,369.75

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