Home / 11,236.74-15,505.79-6,455.18

Finding the Fourth Proportional to 11,236.74, 15,505.79 and 6,455.18

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Solution

The fourth proportional to 11,236.74, 15,505.79 and 6,455.18 is: 8,907.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,236.74 : 15,505.79 = 6,455.18 : x
  2. Step 2: Convert to fraction form
    11,236.74/15,505.79 = 6,455.18/x
  3. Step 3: Cross multiply
    11,236.74x = 15,505.79 × 6,455.18
  4. Step 4: Simplify right side
    11,236.74x = 100,092,555.69
  5. Step 5: Solve for x
    x = 100,092,555.69/11,236.74
  6. Step 6: Final answer
    x = 8,907.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.