Home / 9,221.09-12,724.20-5,683.64

Finding the Fourth Proportional to 9,221.09, 12,724.20 and 5,683.64

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Solution

The fourth proportional to 9,221.09, 12,724.20 and 5,683.64 is: 7,842.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,221.09 : 12,724.20 = 5,683.64 : x
  2. Step 2: Convert to fraction form
    9,221.09/12,724.20 = 5,683.64/x
  3. Step 3: Cross multiply
    9,221.09x = 12,724.20 × 5,683.64
  4. Step 4: Simplify right side
    9,221.09x = 72,319,708.47
  5. Step 5: Solve for x
    x = 72,319,708.47/9,221.09
  6. Step 6: Final answer
    x = 7,842.86

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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.