Home / 8,782.38-12,119.40-5,004.54

Finding the Fourth Proportional to 8,782.38, 12,119.40 and 5,004.54

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Solution

The fourth proportional to 8,782.38, 12,119.40 and 5,004.54 is: 6,906.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,782.38 : 12,119.40 = 5,004.54 : x
  2. Step 2: Convert to fraction form
    8,782.38/12,119.40 = 5,004.54/x
  3. Step 3: Cross multiply
    8,782.38x = 12,119.40 × 5,004.54
  4. Step 4: Simplify right side
    8,782.38x = 60,652,022.08
  5. Step 5: Solve for x
    x = 60,652,022.08/8,782.38
  6. Step 6: Final answer
    x = 6,906.10

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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.