Home / 8,147.40-11,242.71-4,790.35

Finding the Fourth Proportional to 8,147.40, 11,242.71 and 4,790.35

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Solution

The fourth proportional to 8,147.40, 11,242.71 and 4,790.35 is: 6,610.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.40 : 11,242.71 = 4,790.35 : x
  2. Step 2: Convert to fraction form
    8,147.40/11,242.71 = 4,790.35/x
  3. Step 3: Cross multiply
    8,147.40x = 11,242.71 × 4,790.35
  4. Step 4: Simplify right side
    8,147.40x = 53,856,515.85
  5. Step 5: Solve for x
    x = 53,856,515.85/8,147.40
  6. Step 6: Final answer
    x = 6,610.27

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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.