Home / 8,284.30-11,427.48-5,299.05

Finding the Fourth Proportional to 8,284.30, 11,427.48 and 5,299.05

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Solution

The fourth proportional to 8,284.30, 11,427.48 and 5,299.05 is: 7,309.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,284.30 : 11,427.48 = 5,299.05 : x
  2. Step 2: Convert to fraction form
    8,284.30/11,427.48 = 5,299.05/x
  3. Step 3: Cross multiply
    8,284.30x = 11,427.48 × 5,299.05
  4. Step 4: Simplify right side
    8,284.30x = 60,554,787.89
  5. Step 5: Solve for x
    x = 60,554,787.89/8,284.30
  6. Step 6: Final answer
    x = 7,309.58

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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.