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Finding the Fourth Proportional to 7,653.07, 11,472.21 and 4,187.89

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Solution

The fourth proportional to 7,653.07, 11,472.21 and 4,187.89 is: 6,277.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,653.07 : 11,472.21 = 4,187.89 : x
  2. Step 2: Convert to fraction form
    7,653.07/11,472.21 = 4,187.89/x
  3. Step 3: Cross multiply
    7,653.07x = 11,472.21 × 4,187.89
  4. Step 4: Simplify right side
    7,653.07x = 48,044,353.54
  5. Step 5: Solve for x
    x = 48,044,353.54/7,653.07
  6. Step 6: Final answer
    x = 6,277.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.