Home / 18,675.16-25,769.89-11,119.99

Finding the Fourth Proportional to 18,675.16, 25,769.89 and 11,119.99

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Solution

The fourth proportional to 18,675.16, 25,769.89 and 11,119.99 is: 15,344.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,675.16 : 25,769.89 = 11,119.99 : x
  2. Step 2: Convert to fraction form
    18,675.16/25,769.89 = 11,119.99/x
  3. Step 3: Cross multiply
    18,675.16x = 25,769.89 × 11,119.99
  4. Step 4: Simplify right side
    18,675.16x = 286,560,734.65
  5. Step 5: Solve for x
    x = 286,560,734.65/18,675.16
  6. Step 6: Final answer
    x = 15,344.49

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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.