Home / 13,255.26-18,282.63-9,168.60

Finding the Fourth Proportional to 13,255.26, 18,282.63 and 9,168.60

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Solution

The fourth proportional to 13,255.26, 18,282.63 and 9,168.60 is: 12,646.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.26 : 18,282.63 = 9,168.60 : x
  2. Step 2: Convert to fraction form
    13,255.26/18,282.63 = 9,168.60/x
  3. Step 3: Cross multiply
    13,255.26x = 18,282.63 × 9,168.60
  4. Step 4: Simplify right side
    13,255.26x = 167,626,121.42
  5. Step 5: Solve for x
    x = 167,626,121.42/13,255.26
  6. Step 6: Final answer
    x = 12,646.01

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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.