Home / 15,769.96-21,763.62-9,145.96

Finding the Fourth Proportional to 15,769.96, 21,763.62 and 9,145.96

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Solution

The fourth proportional to 15,769.96, 21,763.62 and 9,145.96 is: 12,622.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,769.96 : 21,763.62 = 9,145.96 : x
  2. Step 2: Convert to fraction form
    15,769.96/21,763.62 = 9,145.96/x
  3. Step 3: Cross multiply
    15,769.96x = 21,763.62 × 9,145.96
  4. Step 4: Simplify right side
    15,769.96x = 199,049,197.98
  5. Step 5: Solve for x
    x = 199,049,197.98/15,769.96
  6. Step 6: Final answer
    x = 12,622.05

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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.