Home / 11,811.60-17,719.31-3,492.45

Finding the Fourth Proportional to 11,811.60, 17,719.31 and 3,492.45

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Solution

The fourth proportional to 11,811.60, 17,719.31 and 3,492.45 is: 5,239.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,811.60 : 17,719.31 = 3,492.45 : x
  2. Step 2: Convert to fraction form
    11,811.60/17,719.31 = 3,492.45/x
  3. Step 3: Cross multiply
    11,811.60x = 17,719.31 × 3,492.45
  4. Step 4: Simplify right side
    11,811.60x = 61,883,804.21
  5. Step 5: Solve for x
    x = 61,883,804.21/11,811.60
  6. Step 6: Final answer
    x = 5,239.24

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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.