Home / 8,132.89-12,197.80-2,586.30

Finding the Fourth Proportional to 8,132.89, 12,197.80 and 2,586.30

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Solution

The fourth proportional to 8,132.89, 12,197.80 and 2,586.30 is: 3,878.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,132.89 : 12,197.80 = 2,586.30 : x
  2. Step 2: Convert to fraction form
    8,132.89/12,197.80 = 2,586.30/x
  3. Step 3: Cross multiply
    8,132.89x = 12,197.80 × 2,586.30
  4. Step 4: Simplify right side
    8,132.89x = 31,547,170.14
  5. Step 5: Solve for x
    x = 31,547,170.14/8,132.89
  6. Step 6: Final answer
    x = 3,878.96

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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.