Home / 13,450.13-20,178.43-4,216.13

Finding the Fourth Proportional to 13,450.13, 20,178.43 and 4,216.13

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Solution

The fourth proportional to 13,450.13, 20,178.43 and 4,216.13 is: 6,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,450.13 : 20,178.43 = 4,216.13 : x
  2. Step 2: Convert to fraction form
    13,450.13/20,178.43 = 4,216.13/x
  3. Step 3: Cross multiply
    13,450.13x = 20,178.43 × 4,216.13
  4. Step 4: Simplify right side
    13,450.13x = 85,074,772.64
  5. Step 5: Solve for x
    x = 85,074,772.64/13,450.13
  6. Step 6: Final answer
    x = 6,325.20

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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.