Home / 8,128.24-11,215.33-4,943.25

Finding the Fourth Proportional to 8,128.24, 11,215.33 and 4,943.25

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Solution

The fourth proportional to 8,128.24, 11,215.33 and 4,943.25 is: 6,820.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.24 : 11,215.33 = 4,943.25 : x
  2. Step 2: Convert to fraction form
    8,128.24/11,215.33 = 4,943.25/x
  3. Step 3: Cross multiply
    8,128.24x = 11,215.33 × 4,943.25
  4. Step 4: Simplify right side
    8,128.24x = 55,440,167.66
  5. Step 5: Solve for x
    x = 55,440,167.66/8,128.24
  6. Step 6: Final answer
    x = 6,820.69

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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.