Home / 9,221.73-12,725.55-5,242.40

Finding the Fourth Proportional to 9,221.73, 12,725.55 and 5,242.40

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Solution

The fourth proportional to 9,221.73, 12,725.55 and 5,242.40 is: 7,234.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,221.73 : 12,725.55 = 5,242.40 : x
  2. Step 2: Convert to fraction form
    9,221.73/12,725.55 = 5,242.40/x
  3. Step 3: Cross multiply
    9,221.73x = 12,725.55 × 5,242.40
  4. Step 4: Simplify right side
    9,221.73x = 66,712,455.13
  5. Step 5: Solve for x
    x = 66,712,455.13/9,221.73
  6. Step 6: Final answer
    x = 7,234.27

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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.