Home / 13,023.20-19,519.81-6,453.70

Finding the Fourth Proportional to 13,023.20, 19,519.81 and 6,453.70

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Solution

The fourth proportional to 13,023.20, 19,519.81 and 6,453.70 is: 9,673.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,023.20 : 19,519.81 = 6,453.70 : x
  2. Step 2: Convert to fraction form
    13,023.20/19,519.81 = 6,453.70/x
  3. Step 3: Cross multiply
    13,023.20x = 19,519.81 × 6,453.70
  4. Step 4: Simplify right side
    13,023.20x = 125,974,997.80
  5. Step 5: Solve for x
    x = 125,974,997.80/13,023.20
  6. Step 6: Final answer
    x = 9,673.12

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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.