Home / 8,953.21-13,429.81-3,405.27

Finding the Fourth Proportional to 8,953.21, 13,429.81 and 3,405.27

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Solution

The fourth proportional to 8,953.21, 13,429.81 and 3,405.27 is: 5,107.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,953.21 : 13,429.81 = 3,405.27 : x
  2. Step 2: Convert to fraction form
    8,953.21/13,429.81 = 3,405.27/x
  3. Step 3: Cross multiply
    8,953.21x = 13,429.81 × 3,405.27
  4. Step 4: Simplify right side
    8,953.21x = 45,732,087.01
  5. Step 5: Solve for x
    x = 45,732,087.01/8,953.21
  6. Step 6: Final answer
    x = 5,107.90

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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.