Home / 12,157.32-18,236.70-3,837.60

Finding the Fourth Proportional to 12,157.32, 18,236.70 and 3,837.60

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Solution

The fourth proportional to 12,157.32, 18,236.70 and 3,837.60 is: 5,756.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,157.32 : 18,236.70 = 3,837.60 : x
  2. Step 2: Convert to fraction form
    12,157.32/18,236.70 = 3,837.60/x
  3. Step 3: Cross multiply
    12,157.32x = 18,236.70 × 3,837.60
  4. Step 4: Simplify right side
    12,157.32x = 69,985,159.92
  5. Step 5: Solve for x
    x = 69,985,159.92/12,157.32
  6. Step 6: Final answer
    x = 5,756.63

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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.