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Finding the Fourth Proportional to 13,252, 18,287.08 and 7,945.80

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Solution

The fourth proportional to 13,252, 18,287.08 and 7,945.80 is: 10,964.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,252 : 18,287.08 = 7,945.80 : x
  2. Step 2: Convert to fraction form
    13,252/18,287.08 = 7,945.80/x
  3. Step 3: Cross multiply
    13,252x = 18,287.08 × 7,945.80
  4. Step 4: Simplify right side
    13,252x = 145,305,480.26
  5. Step 5: Solve for x
    x = 145,305,480.26/13,252
  6. Step 6: Final answer
    x = 10,964.80

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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.