Home / 9,090.72-13,624.74-3,240.90

Finding the Fourth Proportional to 9,090.72, 13,624.74 and 3,240.90

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Solution

The fourth proportional to 9,090.72, 13,624.74 and 3,240.90 is: 4,857.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,090.72 : 13,624.74 = 3,240.90 : x
  2. Step 2: Convert to fraction form
    9,090.72/13,624.74 = 3,240.90/x
  3. Step 3: Cross multiply
    9,090.72x = 13,624.74 × 3,240.90
  4. Step 4: Simplify right side
    9,090.72x = 44,156,419.87
  5. Step 5: Solve for x
    x = 44,156,419.87/9,090.72
  6. Step 6: Final answer
    x = 4,857.31

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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.