Home / 11,055.92-15,256.80-6,578.64

Finding the Fourth Proportional to 11,055.92, 15,256.80 and 6,578.64

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Solution

The fourth proportional to 11,055.92, 15,256.80 and 6,578.64 is: 9,078.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,055.92 : 15,256.80 = 6,578.64 : x
  2. Step 2: Convert to fraction form
    11,055.92/15,256.80 = 6,578.64/x
  3. Step 3: Cross multiply
    11,055.92x = 15,256.80 × 6,578.64
  4. Step 4: Simplify right side
    11,055.92x = 100,368,994.75
  5. Step 5: Solve for x
    x = 100,368,994.75/11,055.92
  6. Step 6: Final answer
    x = 9,078.31

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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.