Home / 13,186.36-19,779.54-5,392

Finding the Fourth Proportional to 13,186.36, 19,779.54 and 5,392

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Solution

The fourth proportional to 13,186.36, 19,779.54 and 5,392 is: 8,088

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186.36 : 19,779.54 = 5,392 : x
  2. Step 2: Convert to fraction form
    13,186.36/19,779.54 = 5,392/x
  3. Step 3: Cross multiply
    13,186.36x = 19,779.54 × 5,392
  4. Step 4: Simplify right side
    13,186.36x = 106,651,279.68
  5. Step 5: Solve for x
    x = 106,651,279.68/13,186.36
  6. Step 6: Final answer
    x = 8,088

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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.