Home / 11,458.51-15,813.41-6,422.49

Finding the Fourth Proportional to 11,458.51, 15,813.41 and 6,422.49

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Solution

The fourth proportional to 11,458.51, 15,813.41 and 6,422.49 is: 8,863.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,458.51 : 15,813.41 = 6,422.49 : x
  2. Step 2: Convert to fraction form
    11,458.51/15,813.41 = 6,422.49/x
  3. Step 3: Cross multiply
    11,458.51x = 15,813.41 × 6,422.49
  4. Step 4: Simplify right side
    11,458.51x = 101,561,467.59
  5. Step 5: Solve for x
    x = 101,561,467.59/11,458.51
  6. Step 6: Final answer
    x = 8,863.41

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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.