Home / 12,549.89-18,787.85-10,992.94

Finding the Fourth Proportional to 12,549.89, 18,787.85 and 10,992.94

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Solution

The fourth proportional to 12,549.89, 18,787.85 and 10,992.94 is: 16,457.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,549.89 : 18,787.85 = 10,992.94 : x
  2. Step 2: Convert to fraction form
    12,549.89/18,787.85 = 10,992.94/x
  3. Step 3: Cross multiply
    12,549.89x = 18,787.85 × 10,992.94
  4. Step 4: Simplify right side
    12,549.89x = 206,533,558.88
  5. Step 5: Solve for x
    x = 206,533,558.88/12,549.89
  6. Step 6: Final answer
    x = 16,457.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.