Home / 13,185.31-19,778.16-4,867.28

Finding the Fourth Proportional to 13,185.31, 19,778.16 and 4,867.28

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Solution

The fourth proportional to 13,185.31, 19,778.16 and 4,867.28 is: 7,300.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185.31 : 19,778.16 = 4,867.28 : x
  2. Step 2: Convert to fraction form
    13,185.31/19,778.16 = 4,867.28/x
  3. Step 3: Cross multiply
    13,185.31x = 19,778.16 × 4,867.28
  4. Step 4: Simplify right side
    13,185.31x = 96,265,842.60
  5. Step 5: Solve for x
    x = 96,265,842.60/13,185.31
  6. Step 6: Final answer
    x = 7,300.99

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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.