Home / 13,408.14-20,111.64-4,522.88

Finding the Fourth Proportional to 13,408.14, 20,111.64 and 4,522.88

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Solution

The fourth proportional to 13,408.14, 20,111.64 and 4,522.88 is: 6,784.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,408.14 : 20,111.64 = 4,522.88 : x
  2. Step 2: Convert to fraction form
    13,408.14/20,111.64 = 4,522.88/x
  3. Step 3: Cross multiply
    13,408.14x = 20,111.64 × 4,522.88
  4. Step 4: Simplify right side
    13,408.14x = 90,962,534.32
  5. Step 5: Solve for x
    x = 90,962,534.32/13,408.14
  6. Step 6: Final answer
    x = 6,784.13

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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.