Home / 17,135.91-23,654.70-12,419.28

Finding the Fourth Proportional to 17,135.91, 23,654.70 and 12,419.28

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Solution

The fourth proportional to 17,135.91, 23,654.70 and 12,419.28 is: 17,143.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,135.91 : 23,654.70 = 12,419.28 : x
  2. Step 2: Convert to fraction form
    17,135.91/23,654.70 = 12,419.28/x
  3. Step 3: Cross multiply
    17,135.91x = 23,654.70 × 12,419.28
  4. Step 4: Simplify right side
    17,135.91x = 293,774,342.62
  5. Step 5: Solve for x
    x = 293,774,342.62/17,135.91
  6. Step 6: Final answer
    x = 17,143.78

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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.