Home / 13,722.90-18,937.62-7,435.27

Finding the Fourth Proportional to 13,722.90, 18,937.62 and 7,435.27

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Solution

The fourth proportional to 13,722.90, 18,937.62 and 7,435.27 is: 10,260.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,722.90 : 18,937.62 = 7,435.27 : x
  2. Step 2: Convert to fraction form
    13,722.90/18,937.62 = 7,435.27/x
  3. Step 3: Cross multiply
    13,722.90x = 18,937.62 × 7,435.27
  4. Step 4: Simplify right side
    13,722.90x = 140,806,317.86
  5. Step 5: Solve for x
    x = 140,806,317.86/13,722.90
  6. Step 6: Final answer
    x = 10,260.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.