Home / 13,933.71-20,899.82-10,189.35

Finding the Fourth Proportional to 13,933.71, 20,899.82 and 10,189.35

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Solution

The fourth proportional to 13,933.71, 20,899.82 and 10,189.35 is: 15,283.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,933.71 : 20,899.82 = 10,189.35 : x
  2. Step 2: Convert to fraction form
    13,933.71/20,899.82 = 10,189.35/x
  3. Step 3: Cross multiply
    13,933.71x = 20,899.82 × 10,189.35
  4. Step 4: Simplify right side
    13,933.71x = 212,955,606.39
  5. Step 5: Solve for x
    x = 212,955,606.39/13,933.71
  6. Step 6: Final answer
    x = 15,283.48

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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.