Home / 8,979.20-13,463-3,783.68

Finding the Fourth Proportional to 8,979.20, 13,463 and 3,783.68

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Solution

The fourth proportional to 8,979.20, 13,463 and 3,783.68 is: 5,673.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.20 : 13,463 = 3,783.68 : x
  2. Step 2: Convert to fraction form
    8,979.20/13,463 = 3,783.68/x
  3. Step 3: Cross multiply
    8,979.20x = 13,463 × 3,783.68
  4. Step 4: Simplify right side
    8,979.20x = 50,939,683.84
  5. Step 5: Solve for x
    x = 50,939,683.84/8,979.20
  6. Step 6: Final answer
    x = 5,673.08

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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.