Home / 13,177.03-18,188.54-8,704.75

Finding the Fourth Proportional to 13,177.03, 18,188.54 and 8,704.75

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Solution

The fourth proportional to 13,177.03, 18,188.54 and 8,704.75 is: 12,015.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,177.03 : 18,188.54 = 8,704.75 : x
  2. Step 2: Convert to fraction form
    13,177.03/18,188.54 = 8,704.75/x
  3. Step 3: Cross multiply
    13,177.03x = 18,188.54 × 8,704.75
  4. Step 4: Simplify right side
    13,177.03x = 158,326,693.57
  5. Step 5: Solve for x
    x = 158,326,693.57/13,177.03
  6. Step 6: Final answer
    x = 12,015.36

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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.