Home / 13,215.66-19,810.78-4,893.42

Finding the Fourth Proportional to 13,215.66, 19,810.78 and 4,893.42

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Solution

The fourth proportional to 13,215.66, 19,810.78 and 4,893.42 is: 7,335.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215.66 : 19,810.78 = 4,893.42 : x
  2. Step 2: Convert to fraction form
    13,215.66/19,810.78 = 4,893.42/x
  3. Step 3: Cross multiply
    13,215.66x = 19,810.78 × 4,893.42
  4. Step 4: Simplify right side
    13,215.66x = 96,942,467.07
  5. Step 5: Solve for x
    x = 96,942,467.07/13,215.66
  6. Step 6: Final answer
    x = 7,335.42

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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.