Home / 9,090.20-13,628.75-3,538.86

Finding the Fourth Proportional to 9,090.20, 13,628.75 and 3,538.86

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Solution

The fourth proportional to 9,090.20, 13,628.75 and 3,538.86 is: 5,305.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,090.20 : 13,628.75 = 3,538.86 : x
  2. Step 2: Convert to fraction form
    9,090.20/13,628.75 = 3,538.86/x
  3. Step 3: Cross multiply
    9,090.20x = 13,628.75 × 3,538.86
  4. Step 4: Simplify right side
    9,090.20x = 48,230,220.53
  5. Step 5: Solve for x
    x = 48,230,220.53/9,090.20
  6. Step 6: Final answer
    x = 5,305.74

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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.