Home / 15,796.03-21,790.64-9,418.12

Finding the Fourth Proportional to 15,796.03, 21,790.64 and 9,418.12

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Solution

The fourth proportional to 15,796.03, 21,790.64 and 9,418.12 is: 12,992.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,796.03 : 21,790.64 = 9,418.12 : x
  2. Step 2: Convert to fraction form
    15,796.03/21,790.64 = 9,418.12/x
  3. Step 3: Cross multiply
    15,796.03x = 21,790.64 × 9,418.12
  4. Step 4: Simplify right side
    15,796.03x = 205,226,901.06
  5. Step 5: Solve for x
    x = 205,226,901.06/15,796.03
  6. Step 6: Final answer
    x = 12,992.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.