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Finding the Fourth Proportional to 17,235.81, 25,871.13 and 11,612.79

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Solution

The fourth proportional to 17,235.81, 25,871.13 and 11,612.79 is: 17,430.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,235.81 : 25,871.13 = 11,612.79 : x
  2. Step 2: Convert to fraction form
    17,235.81/25,871.13 = 11,612.79/x
  3. Step 3: Cross multiply
    17,235.81x = 25,871.13 × 11,612.79
  4. Step 4: Simplify right side
    17,235.81x = 300,435,999.75
  5. Step 5: Solve for x
    x = 300,435,999.75/17,235.81
  6. Step 6: Final answer
    x = 17,430.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.