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Finding the Fourth Proportional to 7,866.59, 11,811.50 and 5,250.39

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Solution

The fourth proportional to 7,866.59, 11,811.50 and 5,250.39 is: 7,883.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,866.59 : 11,811.50 = 5,250.39 : x
  2. Step 2: Convert to fraction form
    7,866.59/11,811.50 = 5,250.39/x
  3. Step 3: Cross multiply
    7,866.59x = 11,811.50 × 5,250.39
  4. Step 4: Simplify right side
    7,866.59x = 62,014,960.16
  5. Step 5: Solve for x
    x = 62,014,960.16/7,866.59
  6. Step 6: Final answer
    x = 7,883.34

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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.