Home / 14,579.20-20,118.64-8,923.36

Finding the Fourth Proportional to 14,579.20, 20,118.64 and 8,923.36

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Solution

The fourth proportional to 14,579.20, 20,118.64 and 8,923.36 is: 12,313.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,579.20 : 20,118.64 = 8,923.36 : x
  2. Step 2: Convert to fraction form
    14,579.20/20,118.64 = 8,923.36/x
  3. Step 3: Cross multiply
    14,579.20x = 20,118.64 × 8,923.36
  4. Step 4: Simplify right side
    14,579.20x = 179,525,867.43
  5. Step 5: Solve for x
    x = 179,525,867.43/14,579.20
  6. Step 6: Final answer
    x = 12,313.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.