Home / 18,659.73-27,989.63-5,521.33

Finding the Fourth Proportional to 18,659.73, 27,989.63 and 5,521.33

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Solution

The fourth proportional to 18,659.73, 27,989.63 and 5,521.33 is: 8,282.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,659.73 : 27,989.63 = 5,521.33 : x
  2. Step 2: Convert to fraction form
    18,659.73/27,989.63 = 5,521.33/x
  3. Step 3: Cross multiply
    18,659.73x = 27,989.63 × 5,521.33
  4. Step 4: Simplify right side
    18,659.73x = 154,539,816.25
  5. Step 5: Solve for x
    x = 154,539,816.25/18,659.73
  6. Step 6: Final answer
    x = 8,282.00

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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.