Home / 8,130.39-11,219.96-4,404.39

Finding the Fourth Proportional to 8,130.39, 11,219.96 and 4,404.39

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Solution

The fourth proportional to 8,130.39, 11,219.96 and 4,404.39 is: 6,078.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.39 : 11,219.96 = 4,404.39 : x
  2. Step 2: Convert to fraction form
    8,130.39/11,219.96 = 4,404.39/x
  3. Step 3: Cross multiply
    8,130.39x = 11,219.96 × 4,404.39
  4. Step 4: Simplify right side
    8,130.39x = 49,417,057.60
  5. Step 5: Solve for x
    x = 49,417,057.60/8,130.39
  6. Step 6: Final answer
    x = 6,078.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.