Home / 11,128.26-15,357-6,936.50

Finding the Fourth Proportional to 11,128.26, 15,357 and 6,936.50

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Solution

The fourth proportional to 11,128.26, 15,357 and 6,936.50 is: 9,572.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,128.26 : 15,357 = 6,936.50 : x
  2. Step 2: Convert to fraction form
    11,128.26/15,357 = 6,936.50/x
  3. Step 3: Cross multiply
    11,128.26x = 15,357 × 6,936.50
  4. Step 4: Simplify right side
    11,128.26x = 106,523,830.50
  5. Step 5: Solve for x
    x = 106,523,830.50/11,128.26
  6. Step 6: Final answer
    x = 9,572.37

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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.