Home / 8,077.80-11,147.58-4,540.80

Finding the Fourth Proportional to 8,077.80, 11,147.58 and 4,540.80

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Solution

The fourth proportional to 8,077.80, 11,147.58 and 4,540.80 is: 6,266.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,077.80 : 11,147.58 = 4,540.80 : x
  2. Step 2: Convert to fraction form
    8,077.80/11,147.58 = 4,540.80/x
  3. Step 3: Cross multiply
    8,077.80x = 11,147.58 × 4,540.80
  4. Step 4: Simplify right side
    8,077.80x = 50,618,931.26
  5. Step 5: Solve for x
    x = 50,618,931.26/8,077.80
  6. Step 6: Final answer
    x = 6,266.43

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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.