Home / 11,427.20-17,151.60-9,785.60

Finding the Fourth Proportional to 11,427.20, 17,151.60 and 9,785.60

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Solution

The fourth proportional to 11,427.20, 17,151.60 and 9,785.60 is: 14,687.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,427.20 : 17,151.60 = 9,785.60 : x
  2. Step 2: Convert to fraction form
    11,427.20/17,151.60 = 9,785.60/x
  3. Step 3: Cross multiply
    11,427.20x = 17,151.60 × 9,785.60
  4. Step 4: Simplify right side
    11,427.20x = 167,838,696.96
  5. Step 5: Solve for x
    x = 167,838,696.96/11,427.20
  6. Step 6: Final answer
    x = 14,687.65

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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.