Home / 14,085.38-21,148.83-7,857.56

Finding the Fourth Proportional to 14,085.38, 21,148.83 and 7,857.56

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Solution

The fourth proportional to 14,085.38, 21,148.83 and 7,857.56 is: 11,797.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,085.38 : 21,148.83 = 7,857.56 : x
  2. Step 2: Convert to fraction form
    14,085.38/21,148.83 = 7,857.56/x
  3. Step 3: Cross multiply
    14,085.38x = 21,148.83 × 7,857.56
  4. Step 4: Simplify right side
    14,085.38x = 166,178,200.65
  5. Step 5: Solve for x
    x = 166,178,200.65/14,085.38
  6. Step 6: Final answer
    x = 11,797.92

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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.