Home / 13,554.60-20,293.56-8,612

Finding the Fourth Proportional to 13,554.60, 20,293.56 and 8,612

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Solution

The fourth proportional to 13,554.60, 20,293.56 and 8,612 is: 12,893.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,554.60 : 20,293.56 = 8,612 : x
  2. Step 2: Convert to fraction form
    13,554.60/20,293.56 = 8,612/x
  3. Step 3: Cross multiply
    13,554.60x = 20,293.56 × 8,612
  4. Step 4: Simplify right side
    13,554.60x = 174,768,138.72
  5. Step 5: Solve for x
    x = 174,768,138.72/13,554.60
  6. Step 6: Final answer
    x = 12,893.64

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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.