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Finding the Fourth Proportional to 12,245.57, 16,898.89 and 6,656.57

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Solution

The fourth proportional to 12,245.57, 16,898.89 and 6,656.57 is: 9,186.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,245.57 : 16,898.89 = 6,656.57 : x
  2. Step 2: Convert to fraction form
    12,245.57/16,898.89 = 6,656.57/x
  3. Step 3: Cross multiply
    12,245.57x = 16,898.89 × 6,656.57
  4. Step 4: Simplify right side
    12,245.57x = 112,488,559.71
  5. Step 5: Solve for x
    x = 112,488,559.71/12,245.57
  6. Step 6: Final answer
    x = 9,186.07

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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.