Home / 13,769.65-20,729.41-12,544.93

Finding the Fourth Proportional to 13,769.65, 20,729.41 and 12,544.93

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Solution

The fourth proportional to 13,769.65, 20,729.41 and 12,544.93 is: 18,885.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.65 : 20,729.41 = 12,544.93 : x
  2. Step 2: Convert to fraction form
    13,769.65/20,729.41 = 12,544.93/x
  3. Step 3: Cross multiply
    13,769.65x = 20,729.41 × 12,544.93
  4. Step 4: Simplify right side
    13,769.65x = 260,048,997.39
  5. Step 5: Solve for x
    x = 260,048,997.39/13,769.65
  6. Step 6: Final answer
    x = 18,885.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.