Home / 13,623.36-18,772.38-9,839.82

Finding the Fourth Proportional to 13,623.36, 18,772.38 and 9,839.82

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Solution

The fourth proportional to 13,623.36, 18,772.38 and 9,839.82 is: 13,558.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.36 : 18,772.38 = 9,839.82 : x
  2. Step 2: Convert to fraction form
    13,623.36/18,772.38 = 9,839.82/x
  3. Step 3: Cross multiply
    13,623.36x = 18,772.38 × 9,839.82
  4. Step 4: Simplify right side
    13,623.36x = 184,716,840.17
  5. Step 5: Solve for x
    x = 184,716,840.17/13,623.36
  6. Step 6: Final answer
    x = 13,558.83

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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.