Home / 21,194.12-31,796.01-9,188.28

Finding the Fourth Proportional to 21,194.12, 31,796.01 and 9,188.28

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Solution

The fourth proportional to 21,194.12, 31,796.01 and 9,188.28 is: 13,784.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,194.12 : 31,796.01 = 9,188.28 : x
  2. Step 2: Convert to fraction form
    21,194.12/31,796.01 = 9,188.28/x
  3. Step 3: Cross multiply
    21,194.12x = 31,796.01 × 9,188.28
  4. Step 4: Simplify right side
    21,194.12x = 292,150,642.76
  5. Step 5: Solve for x
    x = 292,150,642.76/21,194.12
  6. Step 6: Final answer
    x = 13,784.52

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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.