Home / 11,578.24-15,980.93-7,393.78

Finding the Fourth Proportional to 11,578.24, 15,980.93 and 7,393.78

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Solution

The fourth proportional to 11,578.24, 15,980.93 and 7,393.78 is: 10,205.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,578.24 : 15,980.93 = 7,393.78 : x
  2. Step 2: Convert to fraction form
    11,578.24/15,980.93 = 7,393.78/x
  3. Step 3: Cross multiply
    11,578.24x = 15,980.93 × 7,393.78
  4. Step 4: Simplify right side
    11,578.24x = 118,159,480.62
  5. Step 5: Solve for x
    x = 118,159,480.62/11,578.24
  6. Step 6: Final answer
    x = 10,205.31

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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.