Home / 13,021.63-19,535.75-3,787.63

Finding the Fourth Proportional to 13,021.63, 19,535.75 and 3,787.63

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Solution

The fourth proportional to 13,021.63, 19,535.75 and 3,787.63 is: 5,682.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021.63 : 19,535.75 = 3,787.63 : x
  2. Step 2: Convert to fraction form
    13,021.63/19,535.75 = 3,787.63/x
  3. Step 3: Cross multiply
    13,021.63x = 19,535.75 × 3,787.63
  4. Step 4: Simplify right side
    13,021.63x = 73,994,076.16
  5. Step 5: Solve for x
    x = 73,994,076.16/13,021.63
  6. Step 6: Final answer
    x = 5,682.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.