Home / 13,406.24-18,501.11-8,100.04

Finding the Fourth Proportional to 13,406.24, 18,501.11 and 8,100.04

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Solution

The fourth proportional to 13,406.24, 18,501.11 and 8,100.04 is: 11,178.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,406.24 : 18,501.11 = 8,100.04 : x
  2. Step 2: Convert to fraction form
    13,406.24/18,501.11 = 8,100.04/x
  3. Step 3: Cross multiply
    13,406.24x = 18,501.11 × 8,100.04
  4. Step 4: Simplify right side
    13,406.24x = 149,859,670.35
  5. Step 5: Solve for x
    x = 149,859,670.35/13,406.24
  6. Step 6: Final answer
    x = 11,178.35

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Why These Related Problems?

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