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Finding the Fourth Proportional to 13,588.46, 18,751.98 and 8,282.96

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Solution

The fourth proportional to 13,588.46, 18,751.98 and 8,282.96 is: 11,430.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,588.46 : 18,751.98 = 8,282.96 : x
  2. Step 2: Convert to fraction form
    13,588.46/18,751.98 = 8,282.96/x
  3. Step 3: Cross multiply
    13,588.46x = 18,751.98 × 8,282.96
  4. Step 4: Simplify right side
    13,588.46x = 155,321,900.26
  5. Step 5: Solve for x
    x = 155,321,900.26/13,588.46
  6. Step 6: Final answer
    x = 11,430.43

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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.