Home / 19,917.56-27,487.55-11,534.06

Finding the Fourth Proportional to 19,917.56, 27,487.55 and 11,534.06

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Solution

The fourth proportional to 19,917.56, 27,487.55 and 11,534.06 is: 15,917.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,917.56 : 27,487.55 = 11,534.06 : x
  2. Step 2: Convert to fraction form
    19,917.56/27,487.55 = 11,534.06/x
  3. Step 3: Cross multiply
    19,917.56x = 27,487.55 × 11,534.06
  4. Step 4: Simplify right side
    19,917.56x = 317,043,148.51
  5. Step 5: Solve for x
    x = 317,043,148.51/19,917.56
  6. Step 6: Final answer
    x = 15,917.77

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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.