Home / 17,956.27-24,779.43-9,889.78

Finding the Fourth Proportional to 17,956.27, 24,779.43 and 9,889.78

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Solution

The fourth proportional to 17,956.27, 24,779.43 and 9,889.78 is: 13,647.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,956.27 : 24,779.43 = 9,889.78 : x
  2. Step 2: Convert to fraction form
    17,956.27/24,779.43 = 9,889.78/x
  3. Step 3: Cross multiply
    17,956.27x = 24,779.43 × 9,889.78
  4. Step 4: Simplify right side
    17,956.27x = 245,062,961.09
  5. Step 5: Solve for x
    x = 245,062,961.09/17,956.27
  6. Step 6: Final answer
    x = 13,647.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.