Home / 9,144.30-13,712.45-4,212.30

Finding the Fourth Proportional to 9,144.30, 13,712.45 and 4,212.30

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Solution

The fourth proportional to 9,144.30, 13,712.45 and 4,212.30 is: 6,316.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,144.30 : 13,712.45 = 4,212.30 : x
  2. Step 2: Convert to fraction form
    9,144.30/13,712.45 = 4,212.30/x
  3. Step 3: Cross multiply
    9,144.30x = 13,712.45 × 4,212.30
  4. Step 4: Simplify right side
    9,144.30x = 57,760,953.14
  5. Step 5: Solve for x
    x = 57,760,953.14/9,144.30
  6. Step 6: Final answer
    x = 6,316.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.