Home / 13,168.40-19,747.80-4,403.60

Finding the Fourth Proportional to 13,168.40, 19,747.80 and 4,403.60

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Solution

The fourth proportional to 13,168.40, 19,747.80 and 4,403.60 is: 6,603.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,168.40 : 19,747.80 = 4,403.60 : x
  2. Step 2: Convert to fraction form
    13,168.40/19,747.80 = 4,403.60/x
  3. Step 3: Cross multiply
    13,168.40x = 19,747.80 × 4,403.60
  4. Step 4: Simplify right side
    13,168.40x = 86,961,412.08
  5. Step 5: Solve for x
    x = 86,961,412.08/13,168.40
  6. Step 6: Final answer
    x = 6,603.79

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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.