Home / 9,857.05-13,602.46-5,380.86

Finding the Fourth Proportional to 9,857.05, 13,602.46 and 5,380.86

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Solution

The fourth proportional to 9,857.05, 13,602.46 and 5,380.86 is: 7,425.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,857.05 : 13,602.46 = 5,380.86 : x
  2. Step 2: Convert to fraction form
    9,857.05/13,602.46 = 5,380.86/x
  3. Step 3: Cross multiply
    9,857.05x = 13,602.46 × 5,380.86
  4. Step 4: Simplify right side
    9,857.05x = 73,192,932.92
  5. Step 5: Solve for x
    x = 73,192,932.92/9,857.05
  6. Step 6: Final answer
    x = 7,425.44

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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.