Home / 13,852.35-20,670.39-12,361.32

Finding the Fourth Proportional to 13,852.35, 20,670.39 and 12,361.32

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Solution

The fourth proportional to 13,852.35, 20,670.39 and 12,361.32 is: 18,445.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,852.35 : 20,670.39 = 12,361.32 : x
  2. Step 2: Convert to fraction form
    13,852.35/20,670.39 = 12,361.32/x
  3. Step 3: Cross multiply
    13,852.35x = 20,670.39 × 12,361.32
  4. Step 4: Simplify right side
    13,852.35x = 255,513,305.31
  5. Step 5: Solve for x
    x = 255,513,305.31/13,852.35
  6. Step 6: Final answer
    x = 18,445.48

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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.