Home / 7,008.21-9,671.31-3,864.38

Finding the Fourth Proportional to 7,008.21, 9,671.31 and 3,864.38

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Solution

The fourth proportional to 7,008.21, 9,671.31 and 3,864.38 is: 5,332.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,008.21 : 9,671.31 = 3,864.38 : x
  2. Step 2: Convert to fraction form
    7,008.21/9,671.31 = 3,864.38/x
  3. Step 3: Cross multiply
    7,008.21x = 9,671.31 × 3,864.38
  4. Step 4: Simplify right side
    7,008.21x = 37,373,568.58
  5. Step 5: Solve for x
    x = 37,373,568.58/7,008.21
  6. Step 6: Final answer
    x = 5,332.83

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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.