Home / 13,996.72-19,315.38-10,427.68

Finding the Fourth Proportional to 13,996.72, 19,315.38 and 10,427.68

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Solution

The fourth proportional to 13,996.72, 19,315.38 and 10,427.68 is: 14,390.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,996.72 : 19,315.38 = 10,427.68 : x
  2. Step 2: Convert to fraction form
    13,996.72/19,315.38 = 10,427.68/x
  3. Step 3: Cross multiply
    13,996.72x = 19,315.38 × 10,427.68
  4. Step 4: Simplify right side
    13,996.72x = 201,414,601.72
  5. Step 5: Solve for x
    x = 201,414,601.72/13,996.72
  6. Step 6: Final answer
    x = 14,390.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.