Home / 17,620.85-26,402.04-12,683.09

Finding the Fourth Proportional to 17,620.85, 26,402.04 and 12,683.09

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Solution

The fourth proportional to 17,620.85, 26,402.04 and 12,683.09 is: 19,003.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,620.85 : 26,402.04 = 12,683.09 : x
  2. Step 2: Convert to fraction form
    17,620.85/26,402.04 = 12,683.09/x
  3. Step 3: Cross multiply
    17,620.85x = 26,402.04 × 12,683.09
  4. Step 4: Simplify right side
    17,620.85x = 334,859,317.49
  5. Step 5: Solve for x
    x = 334,859,317.49/17,620.85
  6. Step 6: Final answer
    x = 19,003.59

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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.