Home / 8,281.22-11,428.89-6,181.70

Finding the Fourth Proportional to 8,281.22, 11,428.89 and 6,181.70

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Solution

The fourth proportional to 8,281.22, 11,428.89 and 6,181.70 is: 8,531.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,281.22 : 11,428.89 = 6,181.70 : x
  2. Step 2: Convert to fraction form
    8,281.22/11,428.89 = 6,181.70/x
  3. Step 3: Cross multiply
    8,281.22x = 11,428.89 × 6,181.70
  4. Step 4: Simplify right side
    8,281.22x = 70,649,969.31
  5. Step 5: Solve for x
    x = 70,649,969.31/8,281.22
  6. Step 6: Final answer
    x = 8,531.35

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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.