Home / 11,894.12-17,835.64-5,320.36

Finding the Fourth Proportional to 11,894.12, 17,835.64 and 5,320.36

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Solution

The fourth proportional to 11,894.12, 17,835.64 and 5,320.36 is: 7,978.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,894.12 : 17,835.64 = 5,320.36 : x
  2. Step 2: Convert to fraction form
    11,894.12/17,835.64 = 5,320.36/x
  3. Step 3: Cross multiply
    11,894.12x = 17,835.64 × 5,320.36
  4. Step 4: Simplify right side
    11,894.12x = 94,892,025.63
  5. Step 5: Solve for x
    x = 94,892,025.63/11,894.12
  6. Step 6: Final answer
    x = 7,978.06

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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.