Home / 11,421.84-17,132.76-3,630.66

Finding the Fourth Proportional to 11,421.84, 17,132.76 and 3,630.66

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Solution

The fourth proportional to 11,421.84, 17,132.76 and 3,630.66 is: 5,445.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,421.84 : 17,132.76 = 3,630.66 : x
  2. Step 2: Convert to fraction form
    11,421.84/17,132.76 = 3,630.66/x
  3. Step 3: Cross multiply
    11,421.84x = 17,132.76 × 3,630.66
  4. Step 4: Simplify right side
    11,421.84x = 62,203,226.42
  5. Step 5: Solve for x
    x = 62,203,226.42/11,421.84
  6. Step 6: Final answer
    x = 5,445.99

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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.