Home / 13,087.14-18,059.40-7,782.36

Finding the Fourth Proportional to 13,087.14, 18,059.40 and 7,782.36

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Solution

The fourth proportional to 13,087.14, 18,059.40 and 7,782.36 is: 10,739.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,087.14 : 18,059.40 = 7,782.36 : x
  2. Step 2: Convert to fraction form
    13,087.14/18,059.40 = 7,782.36/x
  3. Step 3: Cross multiply
    13,087.14x = 18,059.40 × 7,782.36
  4. Step 4: Simplify right side
    13,087.14x = 140,544,752.18
  5. Step 5: Solve for x
    x = 140,544,752.18/13,087.14
  6. Step 6: Final answer
    x = 10,739.15

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.