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Finding the Fourth Proportional to 18,254.48, 25,191.19 and 9,870.98

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Solution

The fourth proportional to 18,254.48, 25,191.19 and 9,870.98 is: 13,621.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,254.48 : 25,191.19 = 9,870.98 : x
  2. Step 2: Convert to fraction form
    18,254.48/25,191.19 = 9,870.98/x
  3. Step 3: Cross multiply
    18,254.48x = 25,191.19 × 9,870.98
  4. Step 4: Simplify right side
    18,254.48x = 248,661,683.31
  5. Step 5: Solve for x
    x = 248,661,683.31/18,254.48
  6. Step 6: Final answer
    x = 13,621.95

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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.