Home / 14,161.96-19,542.36-7,874.20

Finding the Fourth Proportional to 14,161.96, 19,542.36 and 7,874.20

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Solution

The fourth proportional to 14,161.96, 19,542.36 and 7,874.20 is: 10,865.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,161.96 : 19,542.36 = 7,874.20 : x
  2. Step 2: Convert to fraction form
    14,161.96/19,542.36 = 7,874.20/x
  3. Step 3: Cross multiply
    14,161.96x = 19,542.36 × 7,874.20
  4. Step 4: Simplify right side
    14,161.96x = 153,880,451.11
  5. Step 5: Solve for x
    x = 153,880,451.11/14,161.96
  6. Step 6: Final answer
    x = 10,865.76

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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.