Home / 8,283.26-11,435.13-6,390.60

Finding the Fourth Proportional to 8,283.26, 11,435.13 and 6,390.60

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Solution

The fourth proportional to 8,283.26, 11,435.13 and 6,390.60 is: 8,822.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,283.26 : 11,435.13 = 6,390.60 : x
  2. Step 2: Convert to fraction form
    8,283.26/11,435.13 = 6,390.60/x
  3. Step 3: Cross multiply
    8,283.26x = 11,435.13 × 6,390.60
  4. Step 4: Simplify right side
    8,283.26x = 73,077,341.78
  5. Step 5: Solve for x
    x = 73,077,341.78/8,283.26
  6. Step 6: Final answer
    x = 8,822.29

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Half scale
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Double 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.