Home / 13,546.12-18,696.56-8,242.65

Finding the Fourth Proportional to 13,546.12, 18,696.56 and 8,242.65

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Solution

The fourth proportional to 13,546.12, 18,696.56 and 8,242.65 is: 11,376.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,546.12 : 18,696.56 = 8,242.65 : x
  2. Step 2: Convert to fraction form
    13,546.12/18,696.56 = 8,242.65/x
  3. Step 3: Cross multiply
    13,546.12x = 18,696.56 × 8,242.65
  4. Step 4: Simplify right side
    13,546.12x = 154,109,200.28
  5. Step 5: Solve for x
    x = 154,109,200.28/13,546.12
  6. Step 6: Final answer
    x = 11,376.63

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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.