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Finding the Fourth Proportional to 11,365.46, 17,047.80 and 5,520.50

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Solution

The fourth proportional to 11,365.46, 17,047.80 and 5,520.50 is: 8,280.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,365.46 : 17,047.80 = 5,520.50 : x
  2. Step 2: Convert to fraction form
    11,365.46/17,047.80 = 5,520.50/x
  3. Step 3: Cross multiply
    11,365.46x = 17,047.80 × 5,520.50
  4. Step 4: Simplify right side
    11,365.46x = 94,112,379.90
  5. Step 5: Solve for x
    x = 94,112,379.90/11,365.46
  6. Step 6: Final answer
    x = 8,280.56

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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.