Home / 12,278.07-18,419.07-4,882.59

Finding the Fourth Proportional to 12,278.07, 18,419.07 and 4,882.59

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Solution

The fourth proportional to 12,278.07, 18,419.07 and 4,882.59 is: 7,324.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278.07 : 18,419.07 = 4,882.59 : x
  2. Step 2: Convert to fraction form
    12,278.07/18,419.07 = 4,882.59/x
  3. Step 3: Cross multiply
    12,278.07x = 18,419.07 × 4,882.59
  4. Step 4: Simplify right side
    12,278.07x = 89,932,766.99
  5. Step 5: Solve for x
    x = 89,932,766.99/12,278.07
  6. Step 6: Final answer
    x = 7,324.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.