Home / 14,109.38-19,471.05-7,821.75

Finding the Fourth Proportional to 14,109.38, 19,471.05 and 7,821.75

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Solution

The fourth proportional to 14,109.38, 19,471.05 and 7,821.75 is: 10,794.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,109.38 : 19,471.05 = 7,821.75 : x
  2. Step 2: Convert to fraction form
    14,109.38/19,471.05 = 7,821.75/x
  3. Step 3: Cross multiply
    14,109.38x = 19,471.05 × 7,821.75
  4. Step 4: Simplify right side
    14,109.38x = 152,297,685.34
  5. Step 5: Solve for x
    x = 152,297,685.34/14,109.38
  6. Step 6: Final answer
    x = 10,794.07

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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.