Home / 18,522.84-25,562.16-10,139.36

Finding the Fourth Proportional to 18,522.84, 25,562.16 and 10,139.36

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Solution

The fourth proportional to 18,522.84, 25,562.16 and 10,139.36 is: 13,992.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,522.84 : 25,562.16 = 10,139.36 : x
  2. Step 2: Convert to fraction form
    18,522.84/25,562.16 = 10,139.36/x
  3. Step 3: Cross multiply
    18,522.84x = 25,562.16 × 10,139.36
  4. Step 4: Simplify right side
    18,522.84x = 259,183,942.62
  5. Step 5: Solve for x
    x = 259,183,942.62/18,522.84
  6. Step 6: Final answer
    x = 13,992.67

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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.