Home / 8,180.40-12,246.30-7,699.80

Finding the Fourth Proportional to 8,180.40, 12,246.30 and 7,699.80

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Solution

The fourth proportional to 8,180.40, 12,246.30 and 7,699.80 is: 11,526.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,180.40 : 12,246.30 = 7,699.80 : x
  2. Step 2: Convert to fraction form
    8,180.40/12,246.30 = 7,699.80/x
  3. Step 3: Cross multiply
    8,180.40x = 12,246.30 × 7,699.80
  4. Step 4: Simplify right side
    8,180.40x = 94,294,060.74
  5. Step 5: Solve for x
    x = 94,294,060.74/8,180.40
  6. Step 6: Final answer
    x = 11,526.83

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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.