Home / 13,185.60-19,781.63-3,951.60

Finding the Fourth Proportional to 13,185.60, 19,781.63 and 3,951.60

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Solution

The fourth proportional to 13,185.60, 19,781.63 and 3,951.60 is: 5,928.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185.60 : 19,781.63 = 3,951.60 : x
  2. Step 2: Convert to fraction form
    13,185.60/19,781.63 = 3,951.60/x
  3. Step 3: Cross multiply
    13,185.60x = 19,781.63 × 3,951.60
  4. Step 4: Simplify right side
    13,185.60x = 78,168,990.20
  5. Step 5: Solve for x
    x = 78,168,990.20/13,185.60
  6. Step 6: Final answer
    x = 5,928.36

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1.5x scale

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.