Home / 19,965.78-27,553.05-11,013.66

Finding the Fourth Proportional to 19,965.78, 27,553.05 and 11,013.66

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Solution

The fourth proportional to 19,965.78, 27,553.05 and 11,013.66 is: 15,199.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,965.78 : 27,553.05 = 11,013.66 : x
  2. Step 2: Convert to fraction form
    19,965.78/27,553.05 = 11,013.66/x
  3. Step 3: Cross multiply
    19,965.78x = 27,553.05 × 11,013.66
  4. Step 4: Simplify right side
    19,965.78x = 303,459,924.66
  5. Step 5: Solve for x
    x = 303,459,924.66/19,965.78
  6. Step 6: Final answer
    x = 15,199.00

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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.