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Finding the Fourth Proportional to 16,865.40, 25,298.10 and 5,768.40

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Solution

The fourth proportional to 16,865.40, 25,298.10 and 5,768.40 is: 8,652.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,865.40 : 25,298.10 = 5,768.40 : x
  2. Step 2: Convert to fraction form
    16,865.40/25,298.10 = 5,768.40/x
  3. Step 3: Cross multiply
    16,865.40x = 25,298.10 × 5,768.40
  4. Step 4: Simplify right side
    16,865.40x = 145,929,560.04
  5. Step 5: Solve for x
    x = 145,929,560.04/16,865.40
  6. Step 6: Final answer
    x = 8,652.60

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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.