Home / 18,927.45-26,105.99-12,209.67

Finding the Fourth Proportional to 18,927.45, 26,105.99 and 12,209.67

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Solution

The fourth proportional to 18,927.45, 26,105.99 and 12,209.67 is: 16,840.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,927.45 : 26,105.99 = 12,209.67 : x
  2. Step 2: Convert to fraction form
    18,927.45/26,105.99 = 12,209.67/x
  3. Step 3: Cross multiply
    18,927.45x = 26,105.99 × 12,209.67
  4. Step 4: Simplify right side
    18,927.45x = 318,745,461.87
  5. Step 5: Solve for x
    x = 318,745,461.87/18,927.45
  6. Step 6: Final answer
    x = 16,840.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.