Home / 19,918.72-27,476.44-12,453.76

Finding the Fourth Proportional to 19,918.72, 27,476.44 and 12,453.76

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Solution

The fourth proportional to 19,918.72, 27,476.44 and 12,453.76 is: 17,179.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,918.72 : 27,476.44 = 12,453.76 : x
  2. Step 2: Convert to fraction form
    19,918.72/27,476.44 = 12,453.76/x
  3. Step 3: Cross multiply
    19,918.72x = 27,476.44 × 12,453.76
  4. Step 4: Simplify right side
    19,918.72x = 342,184,989.41
  5. Step 5: Solve for x
    x = 342,184,989.41/19,918.72
  6. Step 6: Final answer
    x = 17,179.07

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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.