Home / 12,579.52-18,864.96-4,790.56

Finding the Fourth Proportional to 12,579.52, 18,864.96 and 4,790.56

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Solution

The fourth proportional to 12,579.52, 18,864.96 and 4,790.56 is: 7,184.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,579.52 : 18,864.96 = 4,790.56 : x
  2. Step 2: Convert to fraction form
    12,579.52/18,864.96 = 4,790.56/x
  3. Step 3: Cross multiply
    12,579.52x = 18,864.96 × 4,790.56
  4. Step 4: Simplify right side
    12,579.52x = 90,373,722.78
  5. Step 5: Solve for x
    x = 90,373,722.78/12,579.52
  6. Step 6: Final answer
    x = 7,184.19

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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.