Home / 17,120.65-25,680.98-11,839.05

Finding the Fourth Proportional to 17,120.65, 25,680.98 and 11,839.05

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Solution

The fourth proportional to 17,120.65, 25,680.98 and 11,839.05 is: 17,758.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,120.65 : 25,680.98 = 11,839.05 : x
  2. Step 2: Convert to fraction form
    17,120.65/25,680.98 = 11,839.05/x
  3. Step 3: Cross multiply
    17,120.65x = 25,680.98 × 11,839.05
  4. Step 4: Simplify right side
    17,120.65x = 304,038,406.27
  5. Step 5: Solve for x
    x = 304,038,406.27/17,120.65
  6. Step 6: Final answer
    x = 17,758.58

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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.