Home / 13,140.09-19,713.11-4,375.35

Finding the Fourth Proportional to 13,140.09, 19,713.11 and 4,375.35

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Solution

The fourth proportional to 13,140.09, 19,713.11 and 4,375.35 is: 6,564.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,140.09 : 19,713.11 = 4,375.35 : x
  2. Step 2: Convert to fraction form
    13,140.09/19,713.11 = 4,375.35/x
  3. Step 3: Cross multiply
    13,140.09x = 19,713.11 × 4,375.35
  4. Step 4: Simplify right side
    13,140.09x = 86,251,755.84
  5. Step 5: Solve for x
    x = 86,251,755.84/13,140.09
  6. Step 6: Final answer
    x = 6,564.02

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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.