Home / 13,821.74-19,085.26-11,269.92

Finding the Fourth Proportional to 13,821.74, 19,085.26 and 11,269.92

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Solution

The fourth proportional to 13,821.74, 19,085.26 and 11,269.92 is: 15,561.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.74 : 19,085.26 = 11,269.92 : x
  2. Step 2: Convert to fraction form
    13,821.74/19,085.26 = 11,269.92/x
  3. Step 3: Cross multiply
    13,821.74x = 19,085.26 × 11,269.92
  4. Step 4: Simplify right side
    13,821.74x = 215,089,353.38
  5. Step 5: Solve for x
    x = 215,089,353.38/13,821.74
  6. Step 6: Final answer
    x = 15,561.67

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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.