Home / 19,857.90-27,404.54-11,474.40

Finding the Fourth Proportional to 19,857.90, 27,404.54 and 11,474.40

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Solution

The fourth proportional to 19,857.90, 27,404.54 and 11,474.40 is: 15,835.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,857.90 : 27,404.54 = 11,474.40 : x
  2. Step 2: Convert to fraction form
    19,857.90/27,404.54 = 11,474.40/x
  3. Step 3: Cross multiply
    19,857.90x = 27,404.54 × 11,474.40
  4. Step 4: Simplify right side
    19,857.90x = 314,450,653.78
  5. Step 5: Solve for x
    x = 314,450,653.78/19,857.90
  6. Step 6: Final answer
    x = 15,835.04

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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.