Home / 8,185.90-12,246.45-7,102.30

Finding the Fourth Proportional to 8,185.90, 12,246.45 and 7,102.30

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Solution

The fourth proportional to 8,185.90, 12,246.45 and 7,102.30 is: 10,625.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,185.90 : 12,246.45 = 7,102.30 : x
  2. Step 2: Convert to fraction form
    8,185.90/12,246.45 = 7,102.30/x
  3. Step 3: Cross multiply
    8,185.90x = 12,246.45 × 7,102.30
  4. Step 4: Simplify right side
    8,185.90x = 86,977,961.84
  5. Step 5: Solve for x
    x = 86,977,961.84/8,185.90
  6. Step 6: Final answer
    x = 10,625.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.