Home / 8,138.90-11,233.17-4,782.02

Finding the Fourth Proportional to 8,138.90, 11,233.17 and 4,782.02

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Solution

The fourth proportional to 8,138.90, 11,233.17 and 4,782.02 is: 6,600.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138.90 : 11,233.17 = 4,782.02 : x
  2. Step 2: Convert to fraction form
    8,138.90/11,233.17 = 4,782.02/x
  3. Step 3: Cross multiply
    8,138.90x = 11,233.17 × 4,782.02
  4. Step 4: Simplify right side
    8,138.90x = 53,717,243.60
  5. Step 5: Solve for x
    x = 53,717,243.60/8,138.90
  6. Step 6: Final answer
    x = 6,600.06

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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.