Home / 13,946.40-20,919.84-3,558.24

Finding the Fourth Proportional to 13,946.40, 20,919.84 and 3,558.24

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Solution

The fourth proportional to 13,946.40, 20,919.84 and 3,558.24 is: 5,337.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,946.40 : 20,919.84 = 3,558.24 : x
  2. Step 2: Convert to fraction form
    13,946.40/20,919.84 = 3,558.24/x
  3. Step 3: Cross multiply
    13,946.40x = 20,919.84 × 3,558.24
  4. Step 4: Simplify right side
    13,946.40x = 74,437,811.48
  5. Step 5: Solve for x
    x = 74,437,811.48/13,946.40
  6. Step 6: Final answer
    x = 5,337.42

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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.