Home / 9,221.58-12,725.28-5,242.14

Finding the Fourth Proportional to 9,221.58, 12,725.28 and 5,242.14

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Solution

The fourth proportional to 9,221.58, 12,725.28 and 5,242.14 is: 7,233.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,221.58 : 12,725.28 = 5,242.14 : x
  2. Step 2: Convert to fraction form
    9,221.58/12,725.28 = 5,242.14/x
  3. Step 3: Cross multiply
    9,221.58x = 12,725.28 × 5,242.14
  4. Step 4: Simplify right side
    9,221.58x = 66,707,699.30
  5. Step 5: Solve for x
    x = 66,707,699.30/9,221.58
  6. Step 6: Final answer
    x = 7,233.87

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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.