Home / 14,091.84-21,121.92-6,690.24

Finding the Fourth Proportional to 14,091.84, 21,121.92 and 6,690.24

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Solution

The fourth proportional to 14,091.84, 21,121.92 and 6,690.24 is: 10,027.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,091.84 : 21,121.92 = 6,690.24 : x
  2. Step 2: Convert to fraction form
    14,091.84/21,121.92 = 6,690.24/x
  3. Step 3: Cross multiply
    14,091.84x = 21,121.92 × 6,690.24
  4. Step 4: Simplify right side
    14,091.84x = 141,310,714.06
  5. Step 5: Solve for x
    x = 141,310,714.06/14,091.84
  6. Step 6: Final answer
    x = 10,027.84

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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.