Home / 19,736.12-27,235.64-11,121.50

Finding the Fourth Proportional to 19,736.12, 27,235.64 and 11,121.50

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Solution

The fourth proportional to 19,736.12, 27,235.64 and 11,121.50 is: 15,347.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,736.12 : 27,235.64 = 11,121.50 : x
  2. Step 2: Convert to fraction form
    19,736.12/27,235.64 = 11,121.50/x
  3. Step 3: Cross multiply
    19,736.12x = 27,235.64 × 11,121.50
  4. Step 4: Simplify right side
    19,736.12x = 302,901,266.15
  5. Step 5: Solve for x
    x = 302,901,266.15/19,736.12
  6. Step 6: Final answer
    x = 15,347.56

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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.