Home / 13,119.46-19,662.78-10,335.13

Finding the Fourth Proportional to 13,119.46, 19,662.78 and 10,335.13

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Solution

The fourth proportional to 13,119.46, 19,662.78 and 10,335.13 is: 15,489.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,119.46 : 19,662.78 = 10,335.13 : x
  2. Step 2: Convert to fraction form
    13,119.46/19,662.78 = 10,335.13/x
  3. Step 3: Cross multiply
    13,119.46x = 19,662.78 × 10,335.13
  4. Step 4: Simplify right side
    13,119.46x = 203,217,387.46
  5. Step 5: Solve for x
    x = 203,217,387.46/13,119.46
  6. Step 6: Final answer
    x = 15,489.77

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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.