Home / 8,946.40-13,421.92-3,399.84

Finding the Fourth Proportional to 8,946.40, 13,421.92 and 3,399.84

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Solution

The fourth proportional to 8,946.40, 13,421.92 and 3,399.84 is: 5,100.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,946.40 : 13,421.92 = 3,399.84 : x
  2. Step 2: Convert to fraction form
    8,946.40/13,421.92 = 3,399.84/x
  3. Step 3: Cross multiply
    8,946.40x = 13,421.92 × 3,399.84
  4. Step 4: Simplify right side
    8,946.40x = 45,632,380.49
  5. Step 5: Solve for x
    x = 45,632,380.49/8,946.40
  6. Step 6: Final answer
    x = 5,100.64

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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.