Home / 12,268.87-18,402.93-3,503.80

Finding the Fourth Proportional to 12,268.87, 18,402.93 and 3,503.80

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Solution

The fourth proportional to 12,268.87, 18,402.93 and 3,503.80 is: 5,255.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,268.87 : 18,402.93 = 3,503.80 : x
  2. Step 2: Convert to fraction form
    12,268.87/18,402.93 = 3,503.80/x
  3. Step 3: Cross multiply
    12,268.87x = 18,402.93 × 3,503.80
  4. Step 4: Simplify right side
    12,268.87x = 64,480,186.13
  5. Step 5: Solve for x
    x = 64,480,186.13/12,268.87
  6. Step 6: Final answer
    x = 5,255.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.