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Finding the Fourth Proportional to 13,782.95, 19,020.36 and 7,495.32

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Solution

The fourth proportional to 13,782.95, 19,020.36 and 7,495.32 is: 10,343.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,782.95 : 19,020.36 = 7,495.32 : x
  2. Step 2: Convert to fraction form
    13,782.95/19,020.36 = 7,495.32/x
  3. Step 3: Cross multiply
    13,782.95x = 19,020.36 × 7,495.32
  4. Step 4: Simplify right side
    13,782.95x = 142,563,684.72
  5. Step 5: Solve for x
    x = 142,563,684.72/13,782.95
  6. Step 6: Final answer
    x = 10,343.48

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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.