Home / 13,021.82-19,533.65-6,446.24

Finding the Fourth Proportional to 13,021.82, 19,533.65 and 6,446.24

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Solution

The fourth proportional to 13,021.82, 19,533.65 and 6,446.24 is: 9,669.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021.82 : 19,533.65 = 6,446.24 : x
  2. Step 2: Convert to fraction form
    13,021.82/19,533.65 = 6,446.24/x
  3. Step 3: Cross multiply
    13,021.82x = 19,533.65 × 6,446.24
  4. Step 4: Simplify right side
    13,021.82x = 125,918,612.58
  5. Step 5: Solve for x
    x = 125,918,612.58/13,021.82
  6. Step 6: Final answer
    x = 9,669.81

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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.