Home / 13,186.63-19,783.11-5,395.46

Finding the Fourth Proportional to 13,186.63, 19,783.11 and 5,395.46

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Solution

The fourth proportional to 13,186.63, 19,783.11 and 5,395.46 is: 8,094.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186.63 : 19,783.11 = 5,395.46 : x
  2. Step 2: Convert to fraction form
    13,186.63/19,783.11 = 5,395.46/x
  3. Step 3: Cross multiply
    13,186.63x = 19,783.11 × 5,395.46
  4. Step 4: Simplify right side
    13,186.63x = 106,738,978.68
  5. Step 5: Solve for x
    x = 106,738,978.68/13,186.63
  6. Step 6: Final answer
    x = 8,094.48

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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.