Home / 11,390.40-17,074.56-4,365.04

Finding the Fourth Proportional to 11,390.40, 17,074.56 and 4,365.04

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Solution

The fourth proportional to 11,390.40, 17,074.56 and 4,365.04 is: 6,543.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,390.40 : 17,074.56 = 4,365.04 : x
  2. Step 2: Convert to fraction form
    11,390.40/17,074.56 = 4,365.04/x
  3. Step 3: Cross multiply
    11,390.40x = 17,074.56 × 4,365.04
  4. Step 4: Simplify right side
    11,390.40x = 74,531,137.38
  5. Step 5: Solve for x
    x = 74,531,137.38/11,390.40
  6. Step 6: Final answer
    x = 6,543.33

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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.