Home / 9,376.49-12,939.75-5,127.82

Finding the Fourth Proportional to 9,376.49, 12,939.75 and 5,127.82

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Solution

The fourth proportional to 9,376.49, 12,939.75 and 5,127.82 is: 7,076.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,376.49 : 12,939.75 = 5,127.82 : x
  2. Step 2: Convert to fraction form
    9,376.49/12,939.75 = 5,127.82/x
  3. Step 3: Cross multiply
    9,376.49x = 12,939.75 × 5,127.82
  4. Step 4: Simplify right side
    9,376.49x = 66,352,683.21
  5. Step 5: Solve for x
    x = 66,352,683.21/9,376.49
  6. Step 6: Final answer
    x = 7,076.49

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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.