Home / 18,187.12-27,261.08-8,807.28

Finding the Fourth Proportional to 18,187.12, 27,261.08 and 8,807.28

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Solution

The fourth proportional to 18,187.12, 27,261.08 and 8,807.28 is: 13,201.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,187.12 : 27,261.08 = 8,807.28 : x
  2. Step 2: Convert to fraction form
    18,187.12/27,261.08 = 8,807.28/x
  3. Step 3: Cross multiply
    18,187.12x = 27,261.08 × 8,807.28
  4. Step 4: Simplify right side
    18,187.12x = 240,095,964.66
  5. Step 5: Solve for x
    x = 240,095,964.66/18,187.12
  6. Step 6: Final answer
    x = 13,201.43

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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.