Home / 18,728.09-25,848.39-12,022.20

Finding the Fourth Proportional to 18,728.09, 25,848.39 and 12,022.20

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Solution

The fourth proportional to 18,728.09, 25,848.39 and 12,022.20 is: 16,592.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,728.09 : 25,848.39 = 12,022.20 : x
  2. Step 2: Convert to fraction form
    18,728.09/25,848.39 = 12,022.20/x
  3. Step 3: Cross multiply
    18,728.09x = 25,848.39 × 12,022.20
  4. Step 4: Simplify right side
    18,728.09x = 310,754,559.34
  5. Step 5: Solve for x
    x = 310,754,559.34/18,728.09
  6. Step 6: Final answer
    x = 16,592.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.