Home / 14,665.99-21,810.32-14,198.90

Finding the Fourth Proportional to 14,665.99, 21,810.32 and 14,198.90

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Solution

The fourth proportional to 14,665.99, 21,810.32 and 14,198.90 is: 21,115.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,665.99 : 21,810.32 = 14,198.90 : x
  2. Step 2: Convert to fraction form
    14,665.99/21,810.32 = 14,198.90/x
  3. Step 3: Cross multiply
    14,665.99x = 21,810.32 × 14,198.90
  4. Step 4: Simplify right side
    14,665.99x = 309,682,588.15
  5. Step 5: Solve for x
    x = 309,682,588.15/14,665.99
  6. Step 6: Final answer
    x = 21,115.70

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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.