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Finding the Fourth Proportional to 12,262.68, 18,391.95 and 3,495.51

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Solution

The fourth proportional to 12,262.68, 18,391.95 and 3,495.51 is: 5,242.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,262.68 : 18,391.95 = 3,495.51 : x
  2. Step 2: Convert to fraction form
    12,262.68/18,391.95 = 3,495.51/x
  3. Step 3: Cross multiply
    12,262.68x = 18,391.95 × 3,495.51
  4. Step 4: Simplify right side
    12,262.68x = 64,289,245.14
  5. Step 5: Solve for x
    x = 64,289,245.14/12,262.68
  6. Step 6: Final answer
    x = 5,242.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.