Home / 11,428.35-17,143.29-4,408.42

Finding the Fourth Proportional to 11,428.35, 17,143.29 and 4,408.42

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Solution

The fourth proportional to 11,428.35, 17,143.29 and 4,408.42 is: 6,612.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,428.35 : 17,143.29 = 4,408.42 : x
  2. Step 2: Convert to fraction form
    11,428.35/17,143.29 = 4,408.42/x
  3. Step 3: Cross multiply
    11,428.35x = 17,143.29 × 4,408.42
  4. Step 4: Simplify right side
    11,428.35x = 75,574,787.45
  5. Step 5: Solve for x
    x = 75,574,787.45/11,428.35
  6. Step 6: Final answer
    x = 6,612.92

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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.