Home / 13,015.36-19,522.08-3,781.60

Finding the Fourth Proportional to 13,015.36, 19,522.08 and 3,781.60

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Solution

The fourth proportional to 13,015.36, 19,522.08 and 3,781.60 is: 5,672.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.36 : 19,522.08 = 3,781.60 : x
  2. Step 2: Convert to fraction form
    13,015.36/19,522.08 = 3,781.60/x
  3. Step 3: Cross multiply
    13,015.36x = 19,522.08 × 3,781.60
  4. Step 4: Simplify right side
    13,015.36x = 73,824,697.73
  5. Step 5: Solve for x
    x = 73,824,697.73/13,015.36
  6. Step 6: Final answer
    x = 5,672.12

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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.