Home / 18,429.30-27,638.55-8,566.20

Finding the Fourth Proportional to 18,429.30, 27,638.55 and 8,566.20

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Solution

The fourth proportional to 18,429.30, 27,638.55 and 8,566.20 is: 12,846.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,429.30 : 27,638.55 = 8,566.20 : x
  2. Step 2: Convert to fraction form
    18,429.30/27,638.55 = 8,566.20/x
  3. Step 3: Cross multiply
    18,429.30x = 27,638.55 × 8,566.20
  4. Step 4: Simplify right side
    18,429.30x = 236,757,347.01
  5. Step 5: Solve for x
    x = 236,757,347.01/18,429.30
  6. Step 6: Final answer
    x = 12,846.79

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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.