Home / 9,145.83-12,622.26-5,167.19

Finding the Fourth Proportional to 9,145.83, 12,622.26 and 5,167.19

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Solution

The fourth proportional to 9,145.83, 12,622.26 and 5,167.19 is: 7,131.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145.83 : 12,622.26 = 5,167.19 : x
  2. Step 2: Convert to fraction form
    9,145.83/12,622.26 = 5,167.19/x
  3. Step 3: Cross multiply
    9,145.83x = 12,622.26 × 5,167.19
  4. Step 4: Simplify right side
    9,145.83x = 65,221,615.65
  5. Step 5: Solve for x
    x = 65,221,615.65/9,145.83
  6. Step 6: Final answer
    x = 7,131.30

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Half scale
Find fourth proportional to 18,291.66, 25,244.52 and 10,334.38
Double scale
Find fourth proportional to 9,146.83, 12,623.64 and 5,168.19
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.