Home / 13,617.77-20,426.45-3,756.83

Finding the Fourth Proportional to 13,617.77, 20,426.45 and 3,756.83

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Solution

The fourth proportional to 13,617.77, 20,426.45 and 3,756.83 is: 5,635.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,617.77 : 20,426.45 = 3,756.83 : x
  2. Step 2: Convert to fraction form
    13,617.77/20,426.45 = 3,756.83/x
  3. Step 3: Cross multiply
    13,617.77x = 20,426.45 × 3,756.83
  4. Step 4: Simplify right side
    13,617.77x = 76,738,579.24
  5. Step 5: Solve for x
    x = 76,738,579.24/13,617.77
  6. Step 6: Final answer
    x = 5,635.18

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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.