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Finding the Fourth Proportional to 12,507.44, 18,733.40 and 8,986.88

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Solution

The fourth proportional to 12,507.44, 18,733.40 and 8,986.88 is: 13,460.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,507.44 : 18,733.40 = 8,986.88 : x
  2. Step 2: Convert to fraction form
    12,507.44/18,733.40 = 8,986.88/x
  3. Step 3: Cross multiply
    12,507.44x = 18,733.40 × 8,986.88
  4. Step 4: Simplify right side
    12,507.44x = 168,354,817.79
  5. Step 5: Solve for x
    x = 168,354,817.79/12,507.44
  6. Step 6: Final answer
    x = 13,460.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.