Home / 8,956.05-13,433.39-3,689.72

Finding the Fourth Proportional to 8,956.05, 13,433.39 and 3,689.72

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Solution

The fourth proportional to 8,956.05, 13,433.39 and 3,689.72 is: 5,534.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,956.05 : 13,433.39 = 3,689.72 : x
  2. Step 2: Convert to fraction form
    8,956.05/13,433.39 = 3,689.72/x
  3. Step 3: Cross multiply
    8,956.05x = 13,433.39 × 3,689.72
  4. Step 4: Simplify right side
    8,956.05x = 49,565,447.10
  5. Step 5: Solve for x
    x = 49,565,447.10/8,956.05
  6. Step 6: Final answer
    x = 5,534.30

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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.