Home / 12,895.20-19,332.24-5,493.60

Finding the Fourth Proportional to 12,895.20, 19,332.24 and 5,493.60

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Solution

The fourth proportional to 12,895.20, 19,332.24 and 5,493.60 is: 8,235.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,895.20 : 19,332.24 = 5,493.60 : x
  2. Step 2: Convert to fraction form
    12,895.20/19,332.24 = 5,493.60/x
  3. Step 3: Cross multiply
    12,895.20x = 19,332.24 × 5,493.60
  4. Step 4: Simplify right side
    12,895.20x = 106,203,593.66
  5. Step 5: Solve for x
    x = 106,203,593.66/12,895.20
  6. Step 6: Final answer
    x = 8,235.90

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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.