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Finding the Fourth Proportional to 18,666.66, 25,758.81 and 10,283.16

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Solution

The fourth proportional to 18,666.66, 25,758.81 and 10,283.16 is: 14,190.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,666.66 : 25,758.81 = 10,283.16 : x
  2. Step 2: Convert to fraction form
    18,666.66/25,758.81 = 10,283.16/x
  3. Step 3: Cross multiply
    18,666.66x = 25,758.81 × 10,283.16
  4. Step 4: Simplify right side
    18,666.66x = 264,881,964.64
  5. Step 5: Solve for x
    x = 264,881,964.64/18,666.66
  6. Step 6: Final answer
    x = 14,190.11

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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.