Home / 13,291.56-19,932.38-4,405.25

Finding the Fourth Proportional to 13,291.56, 19,932.38 and 4,405.25

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Solution

The fourth proportional to 13,291.56, 19,932.38 and 4,405.25 is: 6,606.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291.56 : 19,932.38 = 4,405.25 : x
  2. Step 2: Convert to fraction form
    13,291.56/19,932.38 = 4,405.25/x
  3. Step 3: Cross multiply
    13,291.56x = 19,932.38 × 4,405.25
  4. Step 4: Simplify right side
    13,291.56x = 87,807,161.32
  5. Step 5: Solve for x
    x = 87,807,161.32/13,291.56
  6. Step 6: Final answer
    x = 6,606.23

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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.