Home / 12,408.46-17,126.39-7,632.52

Finding the Fourth Proportional to 12,408.46, 17,126.39 and 7,632.52

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Solution

The fourth proportional to 12,408.46, 17,126.39 and 7,632.52 is: 10,534.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408.46 : 17,126.39 = 7,632.52 : x
  2. Step 2: Convert to fraction form
    12,408.46/17,126.39 = 7,632.52/x
  3. Step 3: Cross multiply
    12,408.46x = 17,126.39 × 7,632.52
  4. Step 4: Simplify right side
    12,408.46x = 130,717,514.20
  5. Step 5: Solve for x
    x = 130,717,514.20/12,408.46
  6. Step 6: Final answer
    x = 10,534.55

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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.