Home / 13,340.96-20,010.90-3,480.32

Finding the Fourth Proportional to 13,340.96, 20,010.90 and 3,480.32

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Solution

The fourth proportional to 13,340.96, 20,010.90 and 3,480.32 is: 5,220.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.96 : 20,010.90 = 3,480.32 : x
  2. Step 2: Convert to fraction form
    13,340.96/20,010.90 = 3,480.32/x
  3. Step 3: Cross multiply
    13,340.96x = 20,010.90 × 3,480.32
  4. Step 4: Simplify right side
    13,340.96x = 69,644,335.49
  5. Step 5: Solve for x
    x = 69,644,335.49/13,340.96
  6. Step 6: Final answer
    x = 5,220.34

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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.