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Finding the Fourth Proportional to 18,253.58, 25,190.02 and 9,870.08

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Solution

The fourth proportional to 18,253.58, 25,190.02 and 9,870.08 is: 13,620.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,253.58 : 25,190.02 = 9,870.08 : x
  2. Step 2: Convert to fraction form
    18,253.58/25,190.02 = 9,870.08/x
  3. Step 3: Cross multiply
    18,253.58x = 25,190.02 × 9,870.08
  4. Step 4: Simplify right side
    18,253.58x = 248,627,512.60
  5. Step 5: Solve for x
    x = 248,627,512.60/18,253.58
  6. Step 6: Final answer
    x = 13,620.75

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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.