Home / 11,040.74-15,237.41-9,665.43

Finding the Fourth Proportional to 11,040.74, 15,237.41 and 9,665.43

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Solution

The fourth proportional to 11,040.74, 15,237.41 and 9,665.43 is: 13,339.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,040.74 : 15,237.41 = 9,665.43 : x
  2. Step 2: Convert to fraction form
    11,040.74/15,237.41 = 9,665.43/x
  3. Step 3: Cross multiply
    11,040.74x = 15,237.41 × 9,665.43
  4. Step 4: Simplify right side
    11,040.74x = 147,276,110.05
  5. Step 5: Solve for x
    x = 147,276,110.05/11,040.74
  6. Step 6: Final answer
    x = 13,339.33

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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.