Home / 7,116.84-9,821.37-4,131.59

Finding the Fourth Proportional to 7,116.84, 9,821.37 and 4,131.59

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Solution

The fourth proportional to 7,116.84, 9,821.37 and 4,131.59 is: 5,701.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,116.84 : 9,821.37 = 4,131.59 : x
  2. Step 2: Convert to fraction form
    7,116.84/9,821.37 = 4,131.59/x
  3. Step 3: Cross multiply
    7,116.84x = 9,821.37 × 4,131.59
  4. Step 4: Simplify right side
    7,116.84x = 40,577,840.46
  5. Step 5: Solve for x
    x = 40,577,840.46/7,116.84
  6. Step 6: Final answer
    x = 5,701.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.