Home / 9,147.82-13,721.50-4,217.45

Finding the Fourth Proportional to 9,147.82, 13,721.50 and 4,217.45

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Solution

The fourth proportional to 9,147.82, 13,721.50 and 4,217.45 is: 6,326.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,147.82 : 13,721.50 = 4,217.45 : x
  2. Step 2: Convert to fraction form
    9,147.82/13,721.50 = 4,217.45/x
  3. Step 3: Cross multiply
    9,147.82x = 13,721.50 × 4,217.45
  4. Step 4: Simplify right side
    9,147.82x = 57,869,719.09
  5. Step 5: Solve for x
    x = 57,869,719.09/9,147.82
  6. Step 6: Final answer
    x = 6,326.07

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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.