Home / 13,321.92-19,933.56-10,681.35

Finding the Fourth Proportional to 13,321.92, 19,933.56 and 10,681.35

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Solution

The fourth proportional to 13,321.92, 19,933.56 and 10,681.35 is: 15,982.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321.92 : 19,933.56 = 10,681.35 : x
  2. Step 2: Convert to fraction form
    13,321.92/19,933.56 = 10,681.35/x
  3. Step 3: Cross multiply
    13,321.92x = 19,933.56 × 10,681.35
  4. Step 4: Simplify right side
    13,321.92x = 212,917,331.11
  5. Step 5: Solve for x
    x = 212,917,331.11/13,321.92
  6. Step 6: Final answer
    x = 15,982.48

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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.