Home / 8,130.68-11,220.34-4,404.68

Finding the Fourth Proportional to 8,130.68, 11,220.34 and 4,404.68

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Solution

The fourth proportional to 8,130.68, 11,220.34 and 4,404.68 is: 6,078.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.68 : 11,220.34 = 4,404.68 : x
  2. Step 2: Convert to fraction form
    8,130.68/11,220.34 = 4,404.68/x
  3. Step 3: Cross multiply
    8,130.68x = 11,220.34 × 4,404.68
  4. Step 4: Simplify right side
    8,130.68x = 49,422,007.19
  5. Step 5: Solve for x
    x = 49,422,007.19/8,130.68
  6. Step 6: Final answer
    x = 6,078.46

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Half scale
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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.