Home / 12,975.57-19,486.84-11,933.70

Finding the Fourth Proportional to 12,975.57, 19,486.84 and 11,933.70

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Solution

The fourth proportional to 12,975.57, 19,486.84 and 11,933.70 is: 17,922.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,975.57 : 19,486.84 = 11,933.70 : x
  2. Step 2: Convert to fraction form
    12,975.57/19,486.84 = 11,933.70/x
  3. Step 3: Cross multiply
    12,975.57x = 19,486.84 × 11,933.70
  4. Step 4: Simplify right side
    12,975.57x = 232,550,102.51
  5. Step 5: Solve for x
    x = 232,550,102.51/12,975.57
  6. Step 6: Final answer
    x = 17,922.15

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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.