Home / 11,213.16-15,470.91-7,236.60

Finding the Fourth Proportional to 11,213.16, 15,470.91 and 7,236.60

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Solution

The fourth proportional to 11,213.16, 15,470.91 and 7,236.60 is: 9,984.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,213.16 : 15,470.91 = 7,236.60 : x
  2. Step 2: Convert to fraction form
    11,213.16/15,470.91 = 7,236.60/x
  3. Step 3: Cross multiply
    11,213.16x = 15,470.91 × 7,236.60
  4. Step 4: Simplify right side
    11,213.16x = 111,956,787.31
  5. Step 5: Solve for x
    x = 111,956,787.31/11,213.16
  6. Step 6: Final answer
    x = 9,984.41

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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.