Home / 10,997.40-16,464.90-8,536.60

Finding the Fourth Proportional to 10,997.40, 16,464.90 and 8,536.60

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Solution

The fourth proportional to 10,997.40, 16,464.90 and 8,536.60 is: 12,780.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,997.40 : 16,464.90 = 8,536.60 : x
  2. Step 2: Convert to fraction form
    10,997.40/16,464.90 = 8,536.60/x
  3. Step 3: Cross multiply
    10,997.40x = 16,464.90 × 8,536.60
  4. Step 4: Simplify right side
    10,997.40x = 140,554,265.34
  5. Step 5: Solve for x
    x = 140,554,265.34/10,997.40
  6. Step 6: Final answer
    x = 12,780.68

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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.