Home / 11,617.21-17,421.45-4,219.84

Finding the Fourth Proportional to 11,617.21, 17,421.45 and 4,219.84

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Solution

The fourth proportional to 11,617.21, 17,421.45 and 4,219.84 is: 6,328.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,617.21 : 17,421.45 = 4,219.84 : x
  2. Step 2: Convert to fraction form
    11,617.21/17,421.45 = 4,219.84/x
  3. Step 3: Cross multiply
    11,617.21x = 17,421.45 × 4,219.84
  4. Step 4: Simplify right side
    11,617.21x = 73,515,731.57
  5. Step 5: Solve for x
    x = 73,515,731.57/11,617.21
  6. Step 6: Final answer
    x = 6,328.17

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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.