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Finding the Fourth Proportional to 10,216.80, 14,318.10 and 10,216.80

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Solution

The fourth proportional to 10,216.80, 14,318.10 and 10,216.80 is: 14,318.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,216.80 : 14,318.10 = 10,216.80 : x
  2. Step 2: Convert to fraction form
    10,216.80/14,318.10 = 10,216.80/x
  3. Step 3: Cross multiply
    10,216.80x = 14,318.10 × 10,216.80
  4. Step 4: Simplify right side
    10,216.80x = 146,285,164.08
  5. Step 5: Solve for x
    x = 146,285,164.08/10,216.80
  6. Step 6: Final answer
    x = 14,318.10

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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.