Home / 14,120.91-19,487.22-7,747.77

Finding the Fourth Proportional to 14,120.91, 19,487.22 and 7,747.77

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Solution

The fourth proportional to 14,120.91, 19,487.22 and 7,747.77 is: 10,692.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120.91 : 19,487.22 = 7,747.77 : x
  2. Step 2: Convert to fraction form
    14,120.91/19,487.22 = 7,747.77/x
  3. Step 3: Cross multiply
    14,120.91x = 19,487.22 × 7,747.77
  4. Step 4: Simplify right side
    14,120.91x = 150,982,542.52
  5. Step 5: Solve for x
    x = 150,982,542.52/14,120.91
  6. Step 6: Final answer
    x = 10,692.13

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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.