Home / 13,384.36-20,077.78-3,523.68

Finding the Fourth Proportional to 13,384.36, 20,077.78 and 3,523.68

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Solution

The fourth proportional to 13,384.36, 20,077.78 and 3,523.68 is: 5,285.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,384.36 : 20,077.78 = 3,523.68 : x
  2. Step 2: Convert to fraction form
    13,384.36/20,077.78 = 3,523.68/x
  3. Step 3: Cross multiply
    13,384.36x = 20,077.78 × 3,523.68
  4. Step 4: Simplify right side
    13,384.36x = 70,747,671.83
  5. Step 5: Solve for x
    x = 70,747,671.83/13,384.36
  6. Step 6: Final answer
    x = 5,285.85

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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.