Home / 9,217.59-12,720.27-5,238.60

Finding the Fourth Proportional to 9,217.59, 12,720.27 and 5,238.60

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Solution

The fourth proportional to 9,217.59, 12,720.27 and 5,238.60 is: 7,229.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,217.59 : 12,720.27 = 5,238.60 : x
  2. Step 2: Convert to fraction form
    9,217.59/12,720.27 = 5,238.60/x
  3. Step 3: Cross multiply
    9,217.59x = 12,720.27 × 5,238.60
  4. Step 4: Simplify right side
    9,217.59x = 66,636,406.42
  5. Step 5: Solve for x
    x = 66,636,406.42/9,217.59
  6. Step 6: Final answer
    x = 7,229.27

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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.