Home / 13,113.11-19,677.87-5,321.93

Finding the Fourth Proportional to 13,113.11, 19,677.87 and 5,321.93

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Solution

The fourth proportional to 13,113.11, 19,677.87 and 5,321.93 is: 7,986.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,113.11 : 19,677.87 = 5,321.93 : x
  2. Step 2: Convert to fraction form
    13,113.11/19,677.87 = 5,321.93/x
  3. Step 3: Cross multiply
    13,113.11x = 19,677.87 × 5,321.93
  4. Step 4: Simplify right side
    13,113.11x = 104,724,148.30
  5. Step 5: Solve for x
    x = 104,724,148.30/13,113.11
  6. Step 6: Final answer
    x = 7,986.22

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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.