Home / 7,116.58-9,821.02-4,131.33

Finding the Fourth Proportional to 7,116.58, 9,821.02 and 4,131.33

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Solution

The fourth proportional to 7,116.58, 9,821.02 and 4,131.33 is: 5,701.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,116.58 : 9,821.02 = 4,131.33 : x
  2. Step 2: Convert to fraction form
    7,116.58/9,821.02 = 4,131.33/x
  3. Step 3: Cross multiply
    7,116.58x = 9,821.02 × 4,131.33
  4. Step 4: Simplify right side
    7,116.58x = 40,573,874.56
  5. Step 5: Solve for x
    x = 40,573,874.56/7,116.58
  6. Step 6: Final answer
    x = 5,701.32

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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.