Home / 9,220.40-12,725.22-5,242.10

Finding the Fourth Proportional to 9,220.40, 12,725.22 and 5,242.10

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Solution

The fourth proportional to 9,220.40, 12,725.22 and 5,242.10 is: 7,234.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,220.40 : 12,725.22 = 5,242.10 : x
  2. Step 2: Convert to fraction form
    9,220.40/12,725.22 = 5,242.10/x
  3. Step 3: Cross multiply
    9,220.40x = 12,725.22 × 5,242.10
  4. Step 4: Simplify right side
    9,220.40x = 66,706,907.58
  5. Step 5: Solve for x
    x = 66,706,907.58/9,220.40
  6. Step 6: Final answer
    x = 7,234.71

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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.