Home / 13,731.55-18,935.28-11,748.67

Finding the Fourth Proportional to 13,731.55, 18,935.28 and 11,748.67

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Solution

The fourth proportional to 13,731.55, 18,935.28 and 11,748.67 is: 16,200.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.55 : 18,935.28 = 11,748.67 : x
  2. Step 2: Convert to fraction form
    13,731.55/18,935.28 = 11,748.67/x
  3. Step 3: Cross multiply
    13,731.55x = 18,935.28 × 11,748.67
  4. Step 4: Simplify right side
    13,731.55x = 222,464,297.33
  5. Step 5: Solve for x
    x = 222,464,297.33/13,731.55
  6. Step 6: Final answer
    x = 16,200.96

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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.