Home / 13,115.10-19,667.84-4,792.66

Finding the Fourth Proportional to 13,115.10, 19,667.84 and 4,792.66

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Solution

The fourth proportional to 13,115.10, 19,667.84 and 4,792.66 is: 7,187.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115.10 : 19,667.84 = 4,792.66 : x
  2. Step 2: Convert to fraction form
    13,115.10/19,667.84 = 4,792.66/x
  3. Step 3: Cross multiply
    13,115.10x = 19,667.84 × 4,792.66
  4. Step 4: Simplify right side
    13,115.10x = 94,261,270.05
  5. Step 5: Solve for x
    x = 94,261,270.05/13,115.10
  6. Step 6: Final answer
    x = 7,187.23

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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.