Home / 18,989.96-26,206.34-10,605.48

Finding the Fourth Proportional to 18,989.96, 26,206.34 and 10,605.48

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Solution

The fourth proportional to 18,989.96, 26,206.34 and 10,605.48 is: 14,635.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,989.96 : 26,206.34 = 10,605.48 : x
  2. Step 2: Convert to fraction form
    18,989.96/26,206.34 = 10,605.48/x
  3. Step 3: Cross multiply
    18,989.96x = 26,206.34 × 10,605.48
  4. Step 4: Simplify right side
    18,989.96x = 277,930,814.74
  5. Step 5: Solve for x
    x = 277,930,814.74/18,989.96
  6. Step 6: Final answer
    x = 14,635.67

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Similar ratio
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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.