Home / 9,381.32-14,067.26-3,139.16

Finding the Fourth Proportional to 9,381.32, 14,067.26 and 3,139.16

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Solution

The fourth proportional to 9,381.32, 14,067.26 and 3,139.16 is: 4,707.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,381.32 : 14,067.26 = 3,139.16 : x
  2. Step 2: Convert to fraction form
    9,381.32/14,067.26 = 3,139.16/x
  3. Step 3: Cross multiply
    9,381.32x = 14,067.26 × 3,139.16
  4. Step 4: Simplify right side
    9,381.32x = 44,159,379.90
  5. Step 5: Solve for x
    x = 44,159,379.90/9,381.32
  6. Step 6: Final answer
    x = 4,707.16

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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.