Home / 11,422.19-15,763.41-6,386.31

Finding the Fourth Proportional to 11,422.19, 15,763.41 and 6,386.31

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Solution

The fourth proportional to 11,422.19, 15,763.41 and 6,386.31 is: 8,813.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,422.19 : 15,763.41 = 6,386.31 : x
  2. Step 2: Convert to fraction form
    11,422.19/15,763.41 = 6,386.31/x
  3. Step 3: Cross multiply
    11,422.19x = 15,763.41 × 6,386.31
  4. Step 4: Simplify right side
    11,422.19x = 100,670,022.92
  5. Step 5: Solve for x
    x = 100,670,022.92/11,422.19
  6. Step 6: Final answer
    x = 8,813.55

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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.