Home / 9,014.46-12,425.83-8,290.32

Finding the Fourth Proportional to 9,014.46, 12,425.83 and 8,290.32

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Solution

The fourth proportional to 9,014.46, 12,425.83 and 8,290.32 is: 11,427.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,014.46 : 12,425.83 = 8,290.32 : x
  2. Step 2: Convert to fraction form
    9,014.46/12,425.83 = 8,290.32/x
  3. Step 3: Cross multiply
    9,014.46x = 12,425.83 × 8,290.32
  4. Step 4: Simplify right side
    9,014.46x = 103,014,106.97
  5. Step 5: Solve for x
    x = 103,014,106.97/9,014.46
  6. Step 6: Final answer
    x = 11,427.65

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Half scale
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Double scale
Find fourth proportional to 9,015.46, 12,427.21 and 8,291.32
Similar ratio
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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.