Home / 19,512.20-26,922.16-11,855.32

Finding the Fourth Proportional to 19,512.20, 26,922.16 and 11,855.32

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Solution

The fourth proportional to 19,512.20, 26,922.16 and 11,855.32 is: 16,357.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,512.20 : 26,922.16 = 11,855.32 : x
  2. Step 2: Convert to fraction form
    19,512.20/26,922.16 = 11,855.32/x
  3. Step 3: Cross multiply
    19,512.20x = 26,922.16 × 11,855.32
  4. Step 4: Simplify right side
    19,512.20x = 319,170,821.89
  5. Step 5: Solve for x
    x = 319,170,821.89/19,512.20
  6. Step 6: Final answer
    x = 16,357.50

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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.