Home / 11,121.24-16,690.08-8,956.10

Finding the Fourth Proportional to 11,121.24, 16,690.08 and 8,956.10

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Solution

The fourth proportional to 11,121.24, 16,690.08 and 8,956.10 is: 13,440.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.24 : 16,690.08 = 8,956.10 : x
  2. Step 2: Convert to fraction form
    11,121.24/16,690.08 = 8,956.10/x
  3. Step 3: Cross multiply
    11,121.24x = 16,690.08 × 8,956.10
  4. Step 4: Simplify right side
    11,121.24x = 149,478,025.49
  5. Step 5: Solve for x
    x = 149,478,025.49/11,121.24
  6. Step 6: Final answer
    x = 13,440.77

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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.