Home / 19,143.24-28,676.53-9,782.88

Finding the Fourth Proportional to 19,143.24, 28,676.53 and 9,782.88

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Solution

The fourth proportional to 19,143.24, 28,676.53 and 9,782.88 is: 14,654.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143.24 : 28,676.53 = 9,782.88 : x
  2. Step 2: Convert to fraction form
    19,143.24/28,676.53 = 9,782.88/x
  3. Step 3: Cross multiply
    19,143.24x = 28,676.53 × 9,782.88
  4. Step 4: Simplify right side
    19,143.24x = 280,538,956.50
  5. Step 5: Solve for x
    x = 280,538,956.50/19,143.24
  6. Step 6: Final answer
    x = 14,654.73

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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.