Home / 16,857.68-23,261.84-9,782.72

Finding the Fourth Proportional to 16,857.68, 23,261.84 and 9,782.72

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Solution

The fourth proportional to 16,857.68, 23,261.84 and 9,782.72 is: 13,499.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,857.68 : 23,261.84 = 9,782.72 : x
  2. Step 2: Convert to fraction form
    16,857.68/23,261.84 = 9,782.72/x
  3. Step 3: Cross multiply
    16,857.68x = 23,261.84 × 9,782.72
  4. Step 4: Simplify right side
    16,857.68x = 227,564,067.40
  5. Step 5: Solve for x
    x = 227,564,067.40/16,857.68
  6. Step 6: Final answer
    x = 13,499.13

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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.