Home / 17,145.60-23,665.69-9,976.90

Finding the Fourth Proportional to 17,145.60, 23,665.69 and 9,976.90

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Solution

The fourth proportional to 17,145.60, 23,665.69 and 9,976.90 is: 13,770.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,145.60 : 23,665.69 = 9,976.90 : x
  2. Step 2: Convert to fraction form
    17,145.60/23,665.69 = 9,976.90/x
  3. Step 3: Cross multiply
    17,145.60x = 23,665.69 × 9,976.90
  4. Step 4: Simplify right side
    17,145.60x = 236,110,222.56
  5. Step 5: Solve for x
    x = 236,110,222.56/17,145.60
  6. Step 6: Final answer
    x = 13,770.89

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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.