Home / 15,371.28-23,075.15-12,936.42

Finding the Fourth Proportional to 15,371.28, 23,075.15 and 12,936.42

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Solution

The fourth proportional to 15,371.28, 23,075.15 and 12,936.42 is: 19,419.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,371.28 : 23,075.15 = 12,936.42 : x
  2. Step 2: Convert to fraction form
    15,371.28/23,075.15 = 12,936.42/x
  3. Step 3: Cross multiply
    15,371.28x = 23,075.15 × 12,936.42
  4. Step 4: Simplify right side
    15,371.28x = 298,509,767.28
  5. Step 5: Solve for x
    x = 298,509,767.28/15,371.28
  6. Step 6: Final answer
    x = 19,419.97

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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.