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Finding the Fourth Proportional to 12,201.99, 18,303.26 and 6,354.87

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Solution

The fourth proportional to 12,201.99, 18,303.26 and 6,354.87 is: 9,532.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,201.99 : 18,303.26 = 6,354.87 : x
  2. Step 2: Convert to fraction form
    12,201.99/18,303.26 = 6,354.87/x
  3. Step 3: Cross multiply
    12,201.99x = 18,303.26 × 6,354.87
  4. Step 4: Simplify right side
    12,201.99x = 116,314,806.10
  5. Step 5: Solve for x
    x = 116,314,806.10/12,201.99
  6. Step 6: Final answer
    x = 9,532.45

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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.