Home / 8,666.06-13,000.20-2,820.68

Finding the Fourth Proportional to 8,666.06, 13,000.20 and 2,820.68

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Solution

The fourth proportional to 8,666.06, 13,000.20 and 2,820.68 is: 4,231.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,666.06 : 13,000.20 = 2,820.68 : x
  2. Step 2: Convert to fraction form
    8,666.06/13,000.20 = 2,820.68/x
  3. Step 3: Cross multiply
    8,666.06x = 13,000.20 × 2,820.68
  4. Step 4: Simplify right side
    8,666.06x = 36,669,404.14
  5. Step 5: Solve for x
    x = 36,669,404.14/8,666.06
  6. Step 6: Final answer
    x = 4,231.38

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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.