Home / 8,113.04-11,185.76-6,619.44

Finding the Fourth Proportional to 8,113.04, 11,185.76 and 6,619.44

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Solution

The fourth proportional to 8,113.04, 11,185.76 and 6,619.44 is: 9,126.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,113.04 : 11,185.76 = 6,619.44 : x
  2. Step 2: Convert to fraction form
    8,113.04/11,185.76 = 6,619.44/x
  3. Step 3: Cross multiply
    8,113.04x = 11,185.76 × 6,619.44
  4. Step 4: Simplify right side
    8,113.04x = 74,043,467.17
  5. Step 5: Solve for x
    x = 74,043,467.17/8,113.04
  6. Step 6: Final answer
    x = 9,126.48

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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.