Home / 12,165.58-18,241.08-4,371.76

Finding the Fourth Proportional to 12,165.58, 18,241.08 and 4,371.76

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Solution

The fourth proportional to 12,165.58, 18,241.08 and 4,371.76 is: 6,555.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,165.58 : 18,241.08 = 4,371.76 : x
  2. Step 2: Convert to fraction form
    12,165.58/18,241.08 = 4,371.76/x
  3. Step 3: Cross multiply
    12,165.58x = 18,241.08 × 4,371.76
  4. Step 4: Simplify right side
    12,165.58x = 79,745,623.90
  5. Step 5: Solve for x
    x = 79,745,623.90/12,165.58
  6. Step 6: Final answer
    x = 6,555.02

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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.