Home / 19,577.84-27,012.74-11,921.02

Finding the Fourth Proportional to 19,577.84, 27,012.74 and 11,921.02

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Solution

The fourth proportional to 19,577.84, 27,012.74 and 11,921.02 is: 16,448.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,577.84 : 27,012.74 = 11,921.02 : x
  2. Step 2: Convert to fraction form
    19,577.84/27,012.74 = 11,921.02/x
  3. Step 3: Cross multiply
    19,577.84x = 27,012.74 × 11,921.02
  4. Step 4: Simplify right side
    19,577.84x = 322,019,505.66
  5. Step 5: Solve for x
    x = 322,019,505.66/19,577.84
  6. Step 6: Final answer
    x = 16,448.16

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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.