Home / 10,360.56-15,540.42-4,120.32

Finding the Fourth Proportional to 10,360.56, 15,540.42 and 4,120.32

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Solution

The fourth proportional to 10,360.56, 15,540.42 and 4,120.32 is: 6,180.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,360.56 : 15,540.42 = 4,120.32 : x
  2. Step 2: Convert to fraction form
    10,360.56/15,540.42 = 4,120.32/x
  3. Step 3: Cross multiply
    10,360.56x = 15,540.42 × 4,120.32
  4. Step 4: Simplify right side
    10,360.56x = 64,031,503.33
  5. Step 5: Solve for x
    x = 64,031,503.33/10,360.56
  6. Step 6: Final answer
    x = 6,180.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.