Home / 19,718.31-27,213.93-12,548.94

Finding the Fourth Proportional to 19,718.31, 27,213.93 and 12,548.94

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Solution

The fourth proportional to 19,718.31, 27,213.93 and 12,548.94 is: 17,319.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,718.31 : 27,213.93 = 12,548.94 : x
  2. Step 2: Convert to fraction form
    19,718.31/27,213.93 = 12,548.94/x
  3. Step 3: Cross multiply
    19,718.31x = 27,213.93 × 12,548.94
  4. Step 4: Simplify right side
    19,718.31x = 341,505,974.73
  5. Step 5: Solve for x
    x = 341,505,974.73/19,718.31
  6. Step 6: Final answer
    x = 17,319.23

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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.