Home / 13,907.12-20,736.63-12,361.64

Finding the Fourth Proportional to 13,907.12, 20,736.63 and 12,361.64

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Solution

The fourth proportional to 13,907.12, 20,736.63 and 12,361.64 is: 18,432.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,907.12 : 20,736.63 = 12,361.64 : x
  2. Step 2: Convert to fraction form
    13,907.12/20,736.63 = 12,361.64/x
  3. Step 3: Cross multiply
    13,907.12x = 20,736.63 × 12,361.64
  4. Step 4: Simplify right side
    13,907.12x = 256,338,651.19
  5. Step 5: Solve for x
    x = 256,338,651.19/13,907.12
  6. Step 6: Final answer
    x = 18,432.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.