Home / 12,894.20-19,344.70-5,499.08

Finding the Fourth Proportional to 12,894.20, 19,344.70 and 5,499.08

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Solution

The fourth proportional to 12,894.20, 19,344.70 and 5,499.08 is: 8,250.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,894.20 : 19,344.70 = 5,499.08 : x
  2. Step 2: Convert to fraction form
    12,894.20/19,344.70 = 5,499.08/x
  3. Step 3: Cross multiply
    12,894.20x = 19,344.70 × 5,499.08
  4. Step 4: Simplify right side
    12,894.20x = 106,378,052.88
  5. Step 5: Solve for x
    x = 106,378,052.88/12,894.20
  6. Step 6: Final answer
    x = 8,250.07

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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.