Home / 13,110.52-19,660.56-4,788.64

Finding the Fourth Proportional to 13,110.52, 19,660.56 and 4,788.64

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Solution

The fourth proportional to 13,110.52, 19,660.56 and 4,788.64 is: 7,181.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,110.52 : 19,660.56 = 4,788.64 : x
  2. Step 2: Convert to fraction form
    13,110.52/19,660.56 = 4,788.64/x
  3. Step 3: Cross multiply
    13,110.52x = 19,660.56 × 4,788.64
  4. Step 4: Simplify right side
    13,110.52x = 94,147,344.04
  5. Step 5: Solve for x
    x = 94,147,344.04/13,110.52
  6. Step 6: Final answer
    x = 7,181.05

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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.