Home / 14,749.26-20,352.96-8,781.36

Finding the Fourth Proportional to 14,749.26, 20,352.96 and 8,781.36

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Solution

The fourth proportional to 14,749.26, 20,352.96 and 8,781.36 is: 12,117.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,749.26 : 20,352.96 = 8,781.36 : x
  2. Step 2: Convert to fraction form
    14,749.26/20,352.96 = 8,781.36/x
  3. Step 3: Cross multiply
    14,749.26x = 20,352.96 × 8,781.36
  4. Step 4: Simplify right side
    14,749.26x = 178,726,668.83
  5. Step 5: Solve for x
    x = 178,726,668.83/14,749.26
  6. Step 6: Final answer
    x = 12,117.67

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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.