Home / 9,872.42-13,620.39-6,337.58

Finding the Fourth Proportional to 9,872.42, 13,620.39 and 6,337.58

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Solution

The fourth proportional to 9,872.42, 13,620.39 and 6,337.58 is: 8,743.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,872.42 : 13,620.39 = 6,337.58 : x
  2. Step 2: Convert to fraction form
    9,872.42/13,620.39 = 6,337.58/x
  3. Step 3: Cross multiply
    9,872.42x = 13,620.39 × 6,337.58
  4. Step 4: Simplify right side
    9,872.42x = 86,320,311.26
  5. Step 5: Solve for x
    x = 86,320,311.26/9,872.42
  6. Step 6: Final answer
    x = 8,743.58

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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.