Home / 13,101.21-19,651.99-5,705.40

Finding the Fourth Proportional to 13,101.21, 19,651.99 and 5,705.40

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Solution

The fourth proportional to 13,101.21, 19,651.99 and 5,705.40 is: 8,558.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,101.21 : 19,651.99 = 5,705.40 : x
  2. Step 2: Convert to fraction form
    13,101.21/19,651.99 = 5,705.40/x
  3. Step 3: Cross multiply
    13,101.21x = 19,651.99 × 5,705.40
  4. Step 4: Simplify right side
    13,101.21x = 112,122,463.75
  5. Step 5: Solve for x
    x = 112,122,463.75/13,101.21
  6. Step 6: Final answer
    x = 8,558.18

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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.