Home / 16,515.64-22,790.82-9,345.88

Finding the Fourth Proportional to 16,515.64, 22,790.82 and 9,345.88

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Solution

The fourth proportional to 16,515.64, 22,790.82 and 9,345.88 is: 12,896.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,515.64 : 22,790.82 = 9,345.88 : x
  2. Step 2: Convert to fraction form
    16,515.64/22,790.82 = 9,345.88/x
  3. Step 3: Cross multiply
    16,515.64x = 22,790.82 × 9,345.88
  4. Step 4: Simplify right side
    16,515.64x = 213,000,268.82
  5. Step 5: Solve for x
    x = 213,000,268.82/16,515.64
  6. Step 6: Final answer
    x = 12,896.88

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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.