Home / 14,121.14-21,181.86-4,260.50

Finding the Fourth Proportional to 14,121.14, 21,181.86 and 4,260.50

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Solution

The fourth proportional to 14,121.14, 21,181.86 and 4,260.50 is: 6,390.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.14 : 21,181.86 = 4,260.50 : x
  2. Step 2: Convert to fraction form
    14,121.14/21,181.86 = 4,260.50/x
  3. Step 3: Cross multiply
    14,121.14x = 21,181.86 × 4,260.50
  4. Step 4: Simplify right side
    14,121.14x = 90,245,314.53
  5. Step 5: Solve for x
    x = 90,245,314.53/14,121.14
  6. Step 6: Final answer
    x = 6,390.80

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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.