Home / 12,949.20-19,423.80-3,588.71

Finding the Fourth Proportional to 12,949.20, 19,423.80 and 3,588.71

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Solution

The fourth proportional to 12,949.20, 19,423.80 and 3,588.71 is: 5,383.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,949.20 : 19,423.80 = 3,588.71 : x
  2. Step 2: Convert to fraction form
    12,949.20/19,423.80 = 3,588.71/x
  3. Step 3: Cross multiply
    12,949.20x = 19,423.80 × 3,588.71
  4. Step 4: Simplify right side
    12,949.20x = 69,706,288.18
  5. Step 5: Solve for x
    x = 69,706,288.18/12,949.20
  6. Step 6: Final answer
    x = 5,383.06

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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.