Home / 7,411.20-11,090.43-6,383.40

Finding the Fourth Proportional to 7,411.20, 11,090.43 and 6,383.40

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Solution

The fourth proportional to 7,411.20, 11,090.43 and 6,383.40 is: 9,552.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,411.20 : 11,090.43 = 6,383.40 : x
  2. Step 2: Convert to fraction form
    7,411.20/11,090.43 = 6,383.40/x
  3. Step 3: Cross multiply
    7,411.20x = 11,090.43 × 6,383.40
  4. Step 4: Simplify right side
    7,411.20x = 70,794,650.86
  5. Step 5: Solve for x
    x = 70,794,650.86/7,411.20
  6. Step 6: Final answer
    x = 9,552.39

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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.