Home / 13,845.67-19,107.04-8,543.56

Finding the Fourth Proportional to 13,845.67, 19,107.04 and 8,543.56

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Solution

The fourth proportional to 13,845.67, 19,107.04 and 8,543.56 is: 11,790.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.67 : 19,107.04 = 8,543.56 : x
  2. Step 2: Convert to fraction form
    13,845.67/19,107.04 = 8,543.56/x
  3. Step 3: Cross multiply
    13,845.67x = 19,107.04 × 8,543.56
  4. Step 4: Simplify right side
    13,845.67x = 163,242,142.66
  5. Step 5: Solve for x
    x = 163,242,142.66/13,845.67
  6. Step 6: Final answer
    x = 11,790.12

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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.