Home / 13,173.60-18,163.44-11,307.36

Finding the Fourth Proportional to 13,173.60, 18,163.44 and 11,307.36

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Solution

The fourth proportional to 13,173.60, 18,163.44 and 11,307.36 is: 15,590.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,173.60 : 18,163.44 = 11,307.36 : x
  2. Step 2: Convert to fraction form
    13,173.60/18,163.44 = 11,307.36/x
  3. Step 3: Cross multiply
    13,173.60x = 18,163.44 × 11,307.36
  4. Step 4: Simplify right side
    13,173.60x = 205,380,554.92
  5. Step 5: Solve for x
    x = 205,380,554.92/13,173.60
  6. Step 6: Final answer
    x = 15,590.31

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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.