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Finding the Fourth Proportional to 18,666.36, 27,996.30 and 6,977.16

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Solution

The fourth proportional to 18,666.36, 27,996.30 and 6,977.16 is: 10,464.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,666.36 : 27,996.30 = 6,977.16 : x
  2. Step 2: Convert to fraction form
    18,666.36/27,996.30 = 6,977.16/x
  3. Step 3: Cross multiply
    18,666.36x = 27,996.30 × 6,977.16
  4. Step 4: Simplify right side
    18,666.36x = 195,334,664.51
  5. Step 5: Solve for x
    x = 195,334,664.51/18,666.36
  6. Step 6: Final answer
    x = 10,464.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.