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Finding the Fourth Proportional to 7,387.72, 10,194.95 and 4,030.36

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Solution

The fourth proportional to 7,387.72, 10,194.95 and 4,030.36 is: 5,561.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,387.72 : 10,194.95 = 4,030.36 : x
  2. Step 2: Convert to fraction form
    7,387.72/10,194.95 = 4,030.36/x
  3. Step 3: Cross multiply
    7,387.72x = 10,194.95 × 4,030.36
  4. Step 4: Simplify right side
    7,387.72x = 41,089,303.27
  5. Step 5: Solve for x
    x = 41,089,303.27/7,387.72
  6. Step 6: Final answer
    x = 5,561.84

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.