Home / 13,187.13-19,787.16-6,167.61

Finding the Fourth Proportional to 13,187.13, 19,787.16 and 6,167.61

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Solution

The fourth proportional to 13,187.13, 19,787.16 and 6,167.61 is: 9,254.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.13 : 19,787.16 = 6,167.61 : x
  2. Step 2: Convert to fraction form
    13,187.13/19,787.16 = 6,167.61/x
  3. Step 3: Cross multiply
    13,187.13x = 19,787.16 × 6,167.61
  4. Step 4: Simplify right side
    13,187.13x = 122,039,485.89
  5. Step 5: Solve for x
    x = 122,039,485.89/13,187.13
  6. Step 6: Final answer
    x = 9,254.44

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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.