Home / 13,168.99-19,755.39-3,809.08

Finding the Fourth Proportional to 13,168.99, 19,755.39 and 3,809.08

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Solution

The fourth proportional to 13,168.99, 19,755.39 and 3,809.08 is: 5,714.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,168.99 : 19,755.39 = 3,809.08 : x
  2. Step 2: Convert to fraction form
    13,168.99/19,755.39 = 3,809.08/x
  3. Step 3: Cross multiply
    13,168.99x = 19,755.39 × 3,809.08
  4. Step 4: Simplify right side
    13,168.99x = 75,249,889.71
  5. Step 5: Solve for x
    x = 75,249,889.71/13,168.99
  6. Step 6: Final answer
    x = 5,714.17

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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.