Home / 13,456.22-18,567.36-7,487.73

Finding the Fourth Proportional to 13,456.22, 18,567.36 and 7,487.73

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Solution

The fourth proportional to 13,456.22, 18,567.36 and 7,487.73 is: 10,331.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,456.22 : 18,567.36 = 7,487.73 : x
  2. Step 2: Convert to fraction form
    13,456.22/18,567.36 = 7,487.73/x
  3. Step 3: Cross multiply
    13,456.22x = 18,567.36 × 7,487.73
  4. Step 4: Simplify right side
    13,456.22x = 139,027,378.49
  5. Step 5: Solve for x
    x = 139,027,378.49/13,456.22
  6. Step 6: Final answer
    x = 10,331.83

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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.