Home / 18,389.42-25,362.66-12,015.52

Finding the Fourth Proportional to 18,389.42, 25,362.66 and 12,015.52

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Solution

The fourth proportional to 18,389.42, 25,362.66 and 12,015.52 is: 16,571.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,389.42 : 25,362.66 = 12,015.52 : x
  2. Step 2: Convert to fraction form
    18,389.42/25,362.66 = 12,015.52/x
  3. Step 3: Cross multiply
    18,389.42x = 25,362.66 × 12,015.52
  4. Step 4: Simplify right side
    18,389.42x = 304,745,548.48
  5. Step 5: Solve for x
    x = 304,745,548.48/18,389.42
  6. Step 6: Final answer
    x = 16,571.79

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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.