Home / 12,795.12-17,644.32-11,374.56

Finding the Fourth Proportional to 12,795.12, 17,644.32 and 11,374.56

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Solution

The fourth proportional to 12,795.12, 17,644.32 and 11,374.56 is: 15,685.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,795.12 : 17,644.32 = 11,374.56 : x
  2. Step 2: Convert to fraction form
    12,795.12/17,644.32 = 11,374.56/x
  3. Step 3: Cross multiply
    12,795.12x = 17,644.32 × 11,374.56
  4. Step 4: Simplify right side
    12,795.12x = 200,696,376.50
  5. Step 5: Solve for x
    x = 200,696,376.50/12,795.12
  6. Step 6: Final answer
    x = 15,685.38

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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.