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Finding the Fourth Proportional to 11,321.50, 17,050.04 and 10,311.45

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Solution

The fourth proportional to 11,321.50, 17,050.04 and 10,311.45 is: 15,528.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.50 : 17,050.04 = 10,311.45 : x
  2. Step 2: Convert to fraction form
    11,321.50/17,050.04 = 10,311.45/x
  3. Step 3: Cross multiply
    11,321.50x = 17,050.04 × 10,311.45
  4. Step 4: Simplify right side
    11,321.50x = 175,810,712.04
  5. Step 5: Solve for x
    x = 175,810,712.04/11,321.50
  6. Step 6: Final answer
    x = 15,528.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.