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Finding the Fourth Proportional to 19,266.10, 28,899.15 and 9,424.60

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Solution

The fourth proportional to 19,266.10, 28,899.15 and 9,424.60 is: 14,136.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,266.10 : 28,899.15 = 9,424.60 : x
  2. Step 2: Convert to fraction form
    19,266.10/28,899.15 = 9,424.60/x
  3. Step 3: Cross multiply
    19,266.10x = 28,899.15 × 9,424.60
  4. Step 4: Simplify right side
    19,266.10x = 272,362,929.09
  5. Step 5: Solve for x
    x = 272,362,929.09/19,266.10
  6. Step 6: Final answer
    x = 14,136.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.