Home / 14,130.30-21,198.78-4,269.66

Finding the Fourth Proportional to 14,130.30, 21,198.78 and 4,269.66

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Solution

The fourth proportional to 14,130.30, 21,198.78 and 4,269.66 is: 6,405.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,130.30 : 21,198.78 = 4,269.66 : x
  2. Step 2: Convert to fraction form
    14,130.30/21,198.78 = 4,269.66/x
  3. Step 3: Cross multiply
    14,130.30x = 21,198.78 × 4,269.66
  4. Step 4: Simplify right side
    14,130.30x = 90,511,583.01
  5. Step 5: Solve for x
    x = 90,511,583.01/14,130.30
  6. Step 6: Final answer
    x = 6,405.50

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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.