Home / 11,426.09-17,139.06-4,311.65

Finding the Fourth Proportional to 11,426.09, 17,139.06 and 4,311.65

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Solution

The fourth proportional to 11,426.09, 17,139.06 and 4,311.65 is: 6,467.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,426.09 : 17,139.06 = 4,311.65 : x
  2. Step 2: Convert to fraction form
    11,426.09/17,139.06 = 4,311.65/x
  3. Step 3: Cross multiply
    11,426.09x = 17,139.06 × 4,311.65
  4. Step 4: Simplify right side
    11,426.09x = 73,897,670.90
  5. Step 5: Solve for x
    x = 73,897,670.90/11,426.09
  6. Step 6: Final answer
    x = 6,467.45

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1.5x scale

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.