Home / 9,117.36-12,575.25-6,879.33

Finding the Fourth Proportional to 9,117.36, 12,575.25 and 6,879.33

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Solution

The fourth proportional to 9,117.36, 12,575.25 and 6,879.33 is: 9,488.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,117.36 : 12,575.25 = 6,879.33 : x
  2. Step 2: Convert to fraction form
    9,117.36/12,575.25 = 6,879.33/x
  3. Step 3: Cross multiply
    9,117.36x = 12,575.25 × 6,879.33
  4. Step 4: Simplify right side
    9,117.36x = 86,509,294.58
  5. Step 5: Solve for x
    x = 86,509,294.58/9,117.36
  6. Step 6: Final answer
    x = 9,488.41

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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.