Home / 12,021.28-18,031.92-5,860

Finding the Fourth Proportional to 12,021.28, 18,031.92 and 5,860

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Solution

The fourth proportional to 12,021.28, 18,031.92 and 5,860 is: 8,790.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,021.28 : 18,031.92 = 5,860 : x
  2. Step 2: Convert to fraction form
    12,021.28/18,031.92 = 5,860/x
  3. Step 3: Cross multiply
    12,021.28x = 18,031.92 × 5,860
  4. Step 4: Simplify right side
    12,021.28x = 105,667,051.20
  5. Step 5: Solve for x
    x = 105,667,051.20/12,021.28
  6. Step 6: Final answer
    x = 8,790.00

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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.