Home / 19,811.64-27,334.62-12,254.34

Finding the Fourth Proportional to 19,811.64, 27,334.62 and 12,254.34

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Solution

The fourth proportional to 19,811.64, 27,334.62 and 12,254.34 is: 16,907.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.64 : 27,334.62 = 12,254.34 : x
  2. Step 2: Convert to fraction form
    19,811.64/27,334.62 = 12,254.34/x
  3. Step 3: Cross multiply
    19,811.64x = 27,334.62 × 12,254.34
  4. Step 4: Simplify right side
    19,811.64x = 334,967,727.25
  5. Step 5: Solve for x
    x = 334,967,727.25/19,811.64
  6. Step 6: Final answer
    x = 16,907.62

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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.