Home / 12,575.51-17,351.33-7,540.65

Finding the Fourth Proportional to 12,575.51, 17,351.33 and 7,540.65

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Solution

The fourth proportional to 12,575.51, 17,351.33 and 7,540.65 is: 10,404.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,575.51 : 17,351.33 = 7,540.65 : x
  2. Step 2: Convert to fraction form
    12,575.51/17,351.33 = 7,540.65/x
  3. Step 3: Cross multiply
    12,575.51x = 17,351.33 × 7,540.65
  4. Step 4: Simplify right side
    12,575.51x = 130,840,311.28
  5. Step 5: Solve for x
    x = 130,840,311.28/12,575.51
  6. Step 6: Final answer
    x = 10,404.38

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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.