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Finding the Fourth Proportional to 17,159.28, 23,679 and 9,705.84

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Solution

The fourth proportional to 17,159.28, 23,679 and 9,705.84 is: 13,393.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,159.28 : 23,679 = 9,705.84 : x
  2. Step 2: Convert to fraction form
    17,159.28/23,679 = 9,705.84/x
  3. Step 3: Cross multiply
    17,159.28x = 23,679 × 9,705.84
  4. Step 4: Simplify right side
    17,159.28x = 229,824,585.36
  5. Step 5: Solve for x
    x = 229,824,585.36/17,159.28
  6. Step 6: Final answer
    x = 13,393.60

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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.