Home / 11,326.32-15,612-8,450.16

Finding the Fourth Proportional to 11,326.32, 15,612 and 8,450.16

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Solution

The fourth proportional to 11,326.32, 15,612 and 8,450.16 is: 11,647.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,326.32 : 15,612 = 8,450.16 : x
  2. Step 2: Convert to fraction form
    11,326.32/15,612 = 8,450.16/x
  3. Step 3: Cross multiply
    11,326.32x = 15,612 × 8,450.16
  4. Step 4: Simplify right side
    11,326.32x = 131,923,897.92
  5. Step 5: Solve for x
    x = 131,923,897.92/11,326.32
  6. Step 6: Final answer
    x = 11,647.55

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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.