Home / 8,091.40-12,136.62-4,761.52

Finding the Fourth Proportional to 8,091.40, 12,136.62 and 4,761.52

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Solution

The fourth proportional to 8,091.40, 12,136.62 and 4,761.52 is: 7,142.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,091.40 : 12,136.62 = 4,761.52 : x
  2. Step 2: Convert to fraction form
    8,091.40/12,136.62 = 4,761.52/x
  3. Step 3: Cross multiply
    8,091.40x = 12,136.62 × 4,761.52
  4. Step 4: Simplify right side
    8,091.40x = 57,788,758.86
  5. Step 5: Solve for x
    x = 57,788,758.86/8,091.40
  6. Step 6: Final answer
    x = 7,142.00

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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.