Home / 11,320.38-16,980.50-6,159.06

Finding the Fourth Proportional to 11,320.38, 16,980.50 and 6,159.06

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Solution

The fourth proportional to 11,320.38, 16,980.50 and 6,159.06 is: 9,238.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.38 : 16,980.50 = 6,159.06 : x
  2. Step 2: Convert to fraction form
    11,320.38/16,980.50 = 6,159.06/x
  3. Step 3: Cross multiply
    11,320.38x = 16,980.50 × 6,159.06
  4. Step 4: Simplify right side
    11,320.38x = 104,583,933.73
  5. Step 5: Solve for x
    x = 104,583,933.73/11,320.38
  6. Step 6: Final answer
    x = 9,238.55

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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.