Home / 13,834.59-20,751.84-8,289.60

Finding the Fourth Proportional to 13,834.59, 20,751.84 and 8,289.60

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Solution

The fourth proportional to 13,834.59, 20,751.84 and 8,289.60 is: 12,434.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,834.59 : 20,751.84 = 8,289.60 : x
  2. Step 2: Convert to fraction form
    13,834.59/20,751.84 = 8,289.60/x
  3. Step 3: Cross multiply
    13,834.59x = 20,751.84 × 8,289.60
  4. Step 4: Simplify right side
    13,834.59x = 172,024,452.86
  5. Step 5: Solve for x
    x = 172,024,452.86/13,834.59
  6. Step 6: Final answer
    x = 12,434.37

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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.