Home / 14,085.06-21,106.62-12,840.32

Finding the Fourth Proportional to 14,085.06, 21,106.62 and 12,840.32

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Solution

The fourth proportional to 14,085.06, 21,106.62 and 12,840.32 is: 19,241.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,085.06 : 21,106.62 = 12,840.32 : x
  2. Step 2: Convert to fraction form
    14,085.06/21,106.62 = 12,840.32/x
  3. Step 3: Cross multiply
    14,085.06x = 21,106.62 × 12,840.32
  4. Step 4: Simplify right side
    14,085.06x = 271,015,754.92
  5. Step 5: Solve for x
    x = 271,015,754.92/14,085.06
  6. Step 6: Final answer
    x = 19,241.36

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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.