Home / 14,387.09-21,580.69-3,998.84

Finding the Fourth Proportional to 14,387.09, 21,580.69 and 3,998.84

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Solution

The fourth proportional to 14,387.09, 21,580.69 and 3,998.84 is: 5,998.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,387.09 : 21,580.69 = 3,998.84 : x
  2. Step 2: Convert to fraction form
    14,387.09/21,580.69 = 3,998.84/x
  3. Step 3: Cross multiply
    14,387.09x = 21,580.69 × 3,998.84
  4. Step 4: Simplify right side
    14,387.09x = 86,297,726.40
  5. Step 5: Solve for x
    x = 86,297,726.40/14,387.09
  6. Step 6: Final answer
    x = 5,998.28

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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.