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Finding the Fourth Proportional to 7,889.91, 11,835.50 and 2,624.73

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Solution

The fourth proportional to 7,889.91, 11,835.50 and 2,624.73 is: 3,937.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.91 : 11,835.50 = 2,624.73 : x
  2. Step 2: Convert to fraction form
    7,889.91/11,835.50 = 2,624.73/x
  3. Step 3: Cross multiply
    7,889.91x = 11,835.50 × 2,624.73
  4. Step 4: Simplify right side
    7,889.91x = 31,064,978.79
  5. Step 5: Solve for x
    x = 31,064,978.79/7,889.91
  6. Step 6: Final answer
    x = 3,937.30

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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.