Home / 6,520.36-8,999.71-4,285.27

Finding the Fourth Proportional to 6,520.36, 8,999.71 and 4,285.27

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Solution

The fourth proportional to 6,520.36, 8,999.71 and 4,285.27 is: 5,914.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520.36 : 8,999.71 = 4,285.27 : x
  2. Step 2: Convert to fraction form
    6,520.36/8,999.71 = 4,285.27/x
  3. Step 3: Cross multiply
    6,520.36x = 8,999.71 × 4,285.27
  4. Step 4: Simplify right side
    6,520.36x = 38,566,187.27
  5. Step 5: Solve for x
    x = 38,566,187.27/6,520.36
  6. Step 6: Final answer
    x = 5,914.73

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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.