Home / 8,631.44-11,912.31-5,276.22

Finding the Fourth Proportional to 8,631.44, 11,912.31 and 5,276.22

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Solution

The fourth proportional to 8,631.44, 11,912.31 and 5,276.22 is: 7,281.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631.44 : 11,912.31 = 5,276.22 : x
  2. Step 2: Convert to fraction form
    8,631.44/11,912.31 = 5,276.22/x
  3. Step 3: Cross multiply
    8,631.44x = 11,912.31 × 5,276.22
  4. Step 4: Simplify right side
    8,631.44x = 62,851,975.76
  5. Step 5: Solve for x
    x = 62,851,975.76/8,631.44
  6. Step 6: Final answer
    x = 7,281.74

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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.