Home / 12,675.42-18,898.97-11,621.57

Finding the Fourth Proportional to 12,675.42, 18,898.97 and 11,621.57

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Solution

The fourth proportional to 12,675.42, 18,898.97 and 11,621.57 is: 17,327.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,675.42 : 18,898.97 = 11,621.57 : x
  2. Step 2: Convert to fraction form
    12,675.42/18,898.97 = 11,621.57/x
  3. Step 3: Cross multiply
    12,675.42x = 18,898.97 × 11,621.57
  4. Step 4: Simplify right side
    12,675.42x = 219,635,550.18
  5. Step 5: Solve for x
    x = 219,635,550.18/12,675.42
  6. Step 6: Final answer
    x = 17,327.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.