Home / 8,956.43-13,431.45-3,408.30

Finding the Fourth Proportional to 8,956.43, 13,431.45 and 3,408.30

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Solution

The fourth proportional to 8,956.43, 13,431.45 and 3,408.30 is: 5,111.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,956.43 : 13,431.45 = 3,408.30 : x
  2. Step 2: Convert to fraction form
    8,956.43/13,431.45 = 3,408.30/x
  3. Step 3: Cross multiply
    8,956.43x = 13,431.45 × 3,408.30
  4. Step 4: Simplify right side
    8,956.43x = 45,778,423.82
  5. Step 5: Solve for x
    x = 45,778,423.82/8,956.43
  6. Step 6: Final answer
    x = 5,111.24

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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.