Home / 13,426.68-20,134.85-5,102.31

Finding the Fourth Proportional to 13,426.68, 20,134.85 and 5,102.31

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Solution

The fourth proportional to 13,426.68, 20,134.85 and 5,102.31 is: 7,651.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.68 : 20,134.85 = 5,102.31 : x
  2. Step 2: Convert to fraction form
    13,426.68/20,134.85 = 5,102.31/x
  3. Step 3: Cross multiply
    13,426.68x = 20,134.85 × 5,102.31
  4. Step 4: Simplify right side
    13,426.68x = 102,734,220.99
  5. Step 5: Solve for x
    x = 102,734,220.99/13,426.68
  6. Step 6: Final answer
    x = 7,651.50

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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.