Home / 11,445.38-15,786.46-10,504.21

Finding the Fourth Proportional to 11,445.38, 15,786.46 and 10,504.21

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Solution

The fourth proportional to 11,445.38, 15,786.46 and 10,504.21 is: 14,488.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,445.38 : 15,786.46 = 10,504.21 : x
  2. Step 2: Convert to fraction form
    11,445.38/15,786.46 = 10,504.21/x
  3. Step 3: Cross multiply
    11,445.38x = 15,786.46 × 10,504.21
  4. Step 4: Simplify right side
    11,445.38x = 165,824,159.54
  5. Step 5: Solve for x
    x = 165,824,159.54/11,445.38
  6. Step 6: Final answer
    x = 14,488.31

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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.