Home / 19,965.08-27,551.21-11,012.58

Finding the Fourth Proportional to 19,965.08, 27,551.21 and 11,012.58

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Solution

The fourth proportional to 19,965.08, 27,551.21 and 11,012.58 is: 15,197.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,965.08 : 27,551.21 = 11,012.58 : x
  2. Step 2: Convert to fraction form
    19,965.08/27,551.21 = 11,012.58/x
  3. Step 3: Cross multiply
    19,965.08x = 27,551.21 × 11,012.58
  4. Step 4: Simplify right side
    19,965.08x = 303,409,904.22
  5. Step 5: Solve for x
    x = 303,409,904.22/19,965.08
  6. Step 6: Final answer
    x = 15,197.03

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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.