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Finding the Fourth Proportional to 18,253.79, 25,190.23 and 9,870.29

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Solution

The fourth proportional to 18,253.79, 25,190.23 and 9,870.29 is: 13,621.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,253.79 : 25,190.23 = 9,870.29 : x
  2. Step 2: Convert to fraction form
    18,253.79/25,190.23 = 9,870.29/x
  3. Step 3: Cross multiply
    18,253.79x = 25,190.23 × 9,870.29
  4. Step 4: Simplify right side
    18,253.79x = 248,634,992.46
  5. Step 5: Solve for x
    x = 248,634,992.46/18,253.79
  6. Step 6: Final answer
    x = 13,621.00

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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.