Home / 9,221.79-12,731.32-6,087.09

Finding the Fourth Proportional to 9,221.79, 12,731.32 and 6,087.09

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Solution

The fourth proportional to 9,221.79, 12,731.32 and 6,087.09 is: 8,403.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,221.79 : 12,731.32 = 6,087.09 : x
  2. Step 2: Convert to fraction form
    9,221.79/12,731.32 = 6,087.09/x
  3. Step 3: Cross multiply
    9,221.79x = 12,731.32 × 6,087.09
  4. Step 4: Simplify right side
    9,221.79x = 77,496,690.66
  5. Step 5: Solve for x
    x = 77,496,690.66/9,221.79
  6. Step 6: Final answer
    x = 8,403.65

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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.