Home / 19,886.72-27,443.00-11,927.45

Finding the Fourth Proportional to 19,886.72, 27,443.00 and 11,927.45

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Solution

The fourth proportional to 19,886.72, 27,443.00 and 11,927.45 is: 16,459.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,886.72 : 27,443.00 = 11,927.45 : x
  2. Step 2: Convert to fraction form
    19,886.72/27,443.00 = 11,927.45/x
  3. Step 3: Cross multiply
    19,886.72x = 27,443.00 × 11,927.45
  4. Step 4: Simplify right side
    19,886.72x = 327,325,108.78
  5. Step 5: Solve for x
    x = 327,325,108.78/19,886.72
  6. Step 6: Final answer
    x = 16,459.49

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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.