Home / 13,845.72-19,128-9,077.04

Finding the Fourth Proportional to 13,845.72, 19,128 and 9,077.04

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Solution

The fourth proportional to 13,845.72, 19,128 and 9,077.04 is: 12,540.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.72 : 19,128 = 9,077.04 : x
  2. Step 2: Convert to fraction form
    13,845.72/19,128 = 9,077.04/x
  3. Step 3: Cross multiply
    13,845.72x = 19,128 × 9,077.04
  4. Step 4: Simplify right side
    13,845.72x = 173,625,621.12
  5. Step 5: Solve for x
    x = 173,625,621.12/13,845.72
  6. Step 6: Final answer
    x = 12,540.02

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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.