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Finding the Fourth Proportional to 12,193.48, 16,827.78 and 7,477.12

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Solution

The fourth proportional to 12,193.48, 16,827.78 and 7,477.12 is: 10,318.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,193.48 : 16,827.78 = 7,477.12 : x
  2. Step 2: Convert to fraction form
    12,193.48/16,827.78 = 7,477.12/x
  3. Step 3: Cross multiply
    12,193.48x = 16,827.78 × 7,477.12
  4. Step 4: Simplify right side
    12,193.48x = 125,823,330.39
  5. Step 5: Solve for x
    x = 125,823,330.39/12,193.48
  6. Step 6: Final answer
    x = 10,318.90

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1.5x scale

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.