Home / 11,420.93-15,743.03-10,504.49

Finding the Fourth Proportional to 11,420.93, 15,743.03 and 10,504.49

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Solution

The fourth proportional to 11,420.93, 15,743.03 and 10,504.49 is: 14,479.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,420.93 : 15,743.03 = 10,504.49 : x
  2. Step 2: Convert to fraction form
    11,420.93/15,743.03 = 10,504.49/x
  3. Step 3: Cross multiply
    11,420.93x = 15,743.03 × 10,504.49
  4. Step 4: Simplify right side
    11,420.93x = 165,372,369.97
  5. Step 5: Solve for x
    x = 165,372,369.97/11,420.93
  6. Step 6: Final answer
    x = 14,479.76

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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.