Home / 12,891.04-19,330.26-5,493.76

Finding the Fourth Proportional to 12,891.04, 19,330.26 and 5,493.76

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Solution

The fourth proportional to 12,891.04, 19,330.26 and 5,493.76 is: 8,237.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,891.04 : 19,330.26 = 5,493.76 : x
  2. Step 2: Convert to fraction form
    12,891.04/19,330.26 = 5,493.76/x
  3. Step 3: Cross multiply
    12,891.04x = 19,330.26 × 5,493.76
  4. Step 4: Simplify right side
    12,891.04x = 106,195,809.18
  5. Step 5: Solve for x
    x = 106,195,809.18/12,891.04
  6. Step 6: Final answer
    x = 8,237.96

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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.