Home / 18,828.18-25,972.08-11,742.30

Finding the Fourth Proportional to 18,828.18, 25,972.08 and 11,742.30

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Solution

The fourth proportional to 18,828.18, 25,972.08 and 11,742.30 is: 16,197.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,828.18 : 25,972.08 = 11,742.30 : x
  2. Step 2: Convert to fraction form
    18,828.18/25,972.08 = 11,742.30/x
  3. Step 3: Cross multiply
    18,828.18x = 25,972.08 × 11,742.30
  4. Step 4: Simplify right side
    18,828.18x = 304,971,954.98
  5. Step 5: Solve for x
    x = 304,971,954.98/18,828.18
  6. Step 6: Final answer
    x = 16,197.63

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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.