Home / 13,189.64-19,799.94-10,418.36

Finding the Fourth Proportional to 13,189.64, 19,799.94 and 10,418.36

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Solution

The fourth proportional to 13,189.64, 19,799.94 and 10,418.36 is: 15,639.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,189.64 : 19,799.94 = 10,418.36 : x
  2. Step 2: Convert to fraction form
    13,189.64/19,799.94 = 10,418.36/x
  3. Step 3: Cross multiply
    13,189.64x = 19,799.94 × 10,418.36
  4. Step 4: Simplify right side
    13,189.64x = 206,282,902.90
  5. Step 5: Solve for x
    x = 206,282,902.90/13,189.64
  6. Step 6: Final answer
    x = 15,639.77

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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.