Home / 13,722.84-18,937.62-7,435.26

Finding the Fourth Proportional to 13,722.84, 18,937.62 and 7,435.26

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Solution

The fourth proportional to 13,722.84, 18,937.62 and 7,435.26 is: 10,260.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,722.84 : 18,937.62 = 7,435.26 : x
  2. Step 2: Convert to fraction form
    13,722.84/18,937.62 = 7,435.26/x
  3. Step 3: Cross multiply
    13,722.84x = 18,937.62 × 7,435.26
  4. Step 4: Simplify right side
    13,722.84x = 140,806,128.48
  5. Step 5: Solve for x
    x = 140,806,128.48/13,722.84
  6. Step 6: Final answer
    x = 10,260.71

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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.