Home / 13,903.33-19,181.15-8,866.21

Finding the Fourth Proportional to 13,903.33, 19,181.15 and 8,866.21

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Solution

The fourth proportional to 13,903.33, 19,181.15 and 8,866.21 is: 12,231.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,903.33 : 19,181.15 = 8,866.21 : x
  2. Step 2: Convert to fraction form
    13,903.33/19,181.15 = 8,866.21/x
  3. Step 3: Cross multiply
    13,903.33x = 19,181.15 × 8,866.21
  4. Step 4: Simplify right side
    13,903.33x = 170,064,103.94
  5. Step 5: Solve for x
    x = 170,064,103.94/13,903.33
  6. Step 6: Final answer
    x = 12,231.90

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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.