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Finding the Fourth Proportional to 15,287.54, 21,102.03 and 9,241.16

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Solution

The fourth proportional to 15,287.54, 21,102.03 and 9,241.16 is: 12,755.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,287.54 : 21,102.03 = 9,241.16 : x
  2. Step 2: Convert to fraction form
    15,287.54/21,102.03 = 9,241.16/x
  3. Step 3: Cross multiply
    15,287.54x = 21,102.03 × 9,241.16
  4. Step 4: Simplify right side
    15,287.54x = 195,007,130.04
  5. Step 5: Solve for x
    x = 195,007,130.04/15,287.54
  6. Step 6: Final answer
    x = 12,755.96

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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.