Home / 11,220.42-15,484.41-6,441.85

Finding the Fourth Proportional to 11,220.42, 15,484.41 and 6,441.85

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Solution

The fourth proportional to 11,220.42, 15,484.41 and 6,441.85 is: 8,889.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.42 : 15,484.41 = 6,441.85 : x
  2. Step 2: Convert to fraction form
    11,220.42/15,484.41 = 6,441.85/x
  3. Step 3: Cross multiply
    11,220.42x = 15,484.41 × 6,441.85
  4. Step 4: Simplify right side
    11,220.42x = 99,748,189.60
  5. Step 5: Solve for x
    x = 99,748,189.60/11,220.42
  6. Step 6: Final answer
    x = 8,889.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.