Home / 12,133.40-16,743.38-6,828

Finding the Fourth Proportional to 12,133.40, 16,743.38 and 6,828

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Solution

The fourth proportional to 12,133.40, 16,743.38 and 6,828 is: 9,422.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,133.40 : 16,743.38 = 6,828 : x
  2. Step 2: Convert to fraction form
    12,133.40/16,743.38 = 6,828/x
  3. Step 3: Cross multiply
    12,133.40x = 16,743.38 × 6,828
  4. Step 4: Simplify right side
    12,133.40x = 114,323,798.64
  5. Step 5: Solve for x
    x = 114,323,798.64/12,133.40
  6. Step 6: Final answer
    x = 9,422.24

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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.