Home / 17,318.40-26,001.60-11,116.80

Finding the Fourth Proportional to 17,318.40, 26,001.60 and 11,116.80

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Solution

The fourth proportional to 17,318.40, 26,001.60 and 11,116.80 is: 16,690.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,318.40 : 26,001.60 = 11,116.80 : x
  2. Step 2: Convert to fraction form
    17,318.40/26,001.60 = 11,116.80/x
  3. Step 3: Cross multiply
    17,318.40x = 26,001.60 × 11,116.80
  4. Step 4: Simplify right side
    17,318.40x = 289,054,586.88
  5. Step 5: Solve for x
    x = 289,054,586.88/17,318.40
  6. Step 6: Final answer
    x = 16,690.61

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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.