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Finding the Fourth Proportional to 13,633.64, 20,450.64 and 4,869.08

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Solution

The fourth proportional to 13,633.64, 20,450.64 and 4,869.08 is: 7,303.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,633.64 : 20,450.64 = 4,869.08 : x
  2. Step 2: Convert to fraction form
    13,633.64/20,450.64 = 4,869.08/x
  3. Step 3: Cross multiply
    13,633.64x = 20,450.64 × 4,869.08
  4. Step 4: Simplify right side
    13,633.64x = 99,575,802.21
  5. Step 5: Solve for x
    x = 99,575,802.21/13,633.64
  6. Step 6: Final answer
    x = 7,303.68

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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.