Home / 13,014.21-19,513.38-5,107.26

Finding the Fourth Proportional to 13,014.21, 19,513.38 and 5,107.26

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Solution

The fourth proportional to 13,014.21, 19,513.38 and 5,107.26 is: 7,657.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,014.21 : 19,513.38 = 5,107.26 : x
  2. Step 2: Convert to fraction form
    13,014.21/19,513.38 = 5,107.26/x
  3. Step 3: Cross multiply
    13,014.21x = 19,513.38 × 5,107.26
  4. Step 4: Simplify right side
    13,014.21x = 99,659,905.14
  5. Step 5: Solve for x
    x = 99,659,905.14/13,014.21
  6. Step 6: Final answer
    x = 7,657.78

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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.