Home / 10,997.21-16,491.69-4,421.16

Finding the Fourth Proportional to 10,997.21, 16,491.69 and 4,421.16

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Solution

The fourth proportional to 10,997.21, 16,491.69 and 4,421.16 is: 6,630.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,997.21 : 16,491.69 = 4,421.16 : x
  2. Step 2: Convert to fraction form
    10,997.21/16,491.69 = 4,421.16/x
  3. Step 3: Cross multiply
    10,997.21x = 16,491.69 × 4,421.16
  4. Step 4: Simplify right side
    10,997.21x = 72,912,400.16
  5. Step 5: Solve for x
    x = 72,912,400.16/10,997.21
  6. Step 6: Final answer
    x = 6,630.08

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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.