Home / 9,351.19-12,878.37-9,147.07

Finding the Fourth Proportional to 9,351.19, 12,878.37 and 9,147.07

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Solution

The fourth proportional to 9,351.19, 12,878.37 and 9,147.07 is: 12,597.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,351.19 : 12,878.37 = 9,147.07 : x
  2. Step 2: Convert to fraction form
    9,351.19/12,878.37 = 9,147.07/x
  3. Step 3: Cross multiply
    9,351.19x = 12,878.37 × 9,147.07
  4. Step 4: Simplify right side
    9,351.19x = 117,799,351.88
  5. Step 5: Solve for x
    x = 117,799,351.88/9,351.19
  6. Step 6: Final answer
    x = 12,597.26

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Half scale
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Double scale
Find fourth proportional to 9,352.19, 12,879.75 and 9,148.07
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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.