Home / 14,622.70-20,186.80-10,138.67

Finding the Fourth Proportional to 14,622.70, 20,186.80 and 10,138.67

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Solution

The fourth proportional to 14,622.70, 20,186.80 and 10,138.67 is: 13,996.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,622.70 : 20,186.80 = 10,138.67 : x
  2. Step 2: Convert to fraction form
    14,622.70/20,186.80 = 10,138.67/x
  3. Step 3: Cross multiply
    14,622.70x = 20,186.80 × 10,138.67
  4. Step 4: Simplify right side
    14,622.70x = 204,667,303.56
  5. Step 5: Solve for x
    x = 204,667,303.56/14,622.70
  6. Step 6: Final answer
    x = 13,996.55

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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.