Home / 13,615.08-20,408.06-8,933.32

Finding the Fourth Proportional to 13,615.08, 20,408.06 and 8,933.32

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Solution

The fourth proportional to 13,615.08, 20,408.06 and 8,933.32 is: 13,390.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,615.08 : 20,408.06 = 8,933.32 : x
  2. Step 2: Convert to fraction form
    13,615.08/20,408.06 = 8,933.32/x
  3. Step 3: Cross multiply
    13,615.08x = 20,408.06 × 8,933.32
  4. Step 4: Simplify right side
    13,615.08x = 182,311,730.56
  5. Step 5: Solve for x
    x = 182,311,730.56/13,615.08
  6. Step 6: Final answer
    x = 13,390.43

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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.