Home / 13,851.12-19,110.96-8,813.28

Finding the Fourth Proportional to 13,851.12, 19,110.96 and 8,813.28

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Solution

The fourth proportional to 13,851.12, 19,110.96 and 8,813.28 is: 12,160.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,851.12 : 19,110.96 = 8,813.28 : x
  2. Step 2: Convert to fraction form
    13,851.12/19,110.96 = 8,813.28/x
  3. Step 3: Cross multiply
    13,851.12x = 19,110.96 × 8,813.28
  4. Step 4: Simplify right side
    13,851.12x = 168,430,241.55
  5. Step 5: Solve for x
    x = 168,430,241.55/13,851.12
  6. Step 6: Final answer
    x = 12,160.04

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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.