Home / 8,065.90-11,130.64-4,480.79

Finding the Fourth Proportional to 8,065.90, 11,130.64 and 4,480.79

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Solution

The fourth proportional to 8,065.90, 11,130.64 and 4,480.79 is: 6,183.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,065.90 : 11,130.64 = 4,480.79 : x
  2. Step 2: Convert to fraction form
    8,065.90/11,130.64 = 4,480.79/x
  3. Step 3: Cross multiply
    8,065.90x = 11,130.64 × 4,480.79
  4. Step 4: Simplify right side
    8,065.90x = 49,874,060.41
  5. Step 5: Solve for x
    x = 49,874,060.41/8,065.90
  6. Step 6: Final answer
    x = 6,183.32

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Half scale
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Double scale
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Similar ratio
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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.