Home / 7,418.22-11,071.01-7,116.80

Finding the Fourth Proportional to 7,418.22, 11,071.01 and 7,116.80

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Solution

The fourth proportional to 7,418.22, 11,071.01 and 7,116.80 is: 10,621.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.22 : 11,071.01 = 7,116.80 : x
  2. Step 2: Convert to fraction form
    7,418.22/11,071.01 = 7,116.80/x
  3. Step 3: Cross multiply
    7,418.22x = 11,071.01 × 7,116.80
  4. Step 4: Simplify right side
    7,418.22x = 78,790,126.40
  5. Step 5: Solve for x
    x = 78,790,126.40/7,418.22
  6. Step 6: Final answer
    x = 10,621.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.