Home / 12,582.72-18,871.62-11,958.30

Finding the Fourth Proportional to 12,582.72, 18,871.62 and 11,958.30

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Solution

The fourth proportional to 12,582.72, 18,871.62 and 11,958.30 is: 17,935.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,582.72 : 18,871.62 = 11,958.30 : x
  2. Step 2: Convert to fraction form
    12,582.72/18,871.62 = 11,958.30/x
  3. Step 3: Cross multiply
    12,582.72x = 18,871.62 × 11,958.30
  4. Step 4: Simplify right side
    12,582.72x = 225,672,493.45
  5. Step 5: Solve for x
    x = 225,672,493.45/12,582.72
  6. Step 6: Final answer
    x = 17,935.11

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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.