Home / 11,530.20-17,310.86-7,378.32

Finding the Fourth Proportional to 11,530.20, 17,310.86 and 7,378.32

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Solution

The fourth proportional to 11,530.20, 17,310.86 and 7,378.32 is: 11,077.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,530.20 : 17,310.86 = 7,378.32 : x
  2. Step 2: Convert to fraction form
    11,530.20/17,310.86 = 7,378.32/x
  3. Step 3: Cross multiply
    11,530.20x = 17,310.86 × 7,378.32
  4. Step 4: Simplify right side
    11,530.20x = 127,725,027.66
  5. Step 5: Solve for x
    x = 127,725,027.66/11,530.20
  6. Step 6: Final answer
    x = 11,077.43

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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.