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Finding the Fourth Proportional to 18,393.84, 25,383 and 10,010.16

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Solution

The fourth proportional to 18,393.84, 25,383 and 10,010.16 is: 13,813.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,393.84 : 25,383 = 10,010.16 : x
  2. Step 2: Convert to fraction form
    18,393.84/25,383 = 10,010.16/x
  3. Step 3: Cross multiply
    18,393.84x = 25,383 × 10,010.16
  4. Step 4: Simplify right side
    18,393.84x = 254,087,891.28
  5. Step 5: Solve for x
    x = 254,087,891.28/18,393.84
  6. Step 6: Final answer
    x = 13,813.75

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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.