Home / 13,288.44-19,931.94-13,124.28

Finding the Fourth Proportional to 13,288.44, 19,931.94 and 13,124.28

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Solution

The fourth proportional to 13,288.44, 19,931.94 and 13,124.28 is: 19,685.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,288.44 : 19,931.94 = 13,124.28 : x
  2. Step 2: Convert to fraction form
    13,288.44/19,931.94 = 13,124.28/x
  3. Step 3: Cross multiply
    13,288.44x = 19,931.94 × 13,124.28
  4. Step 4: Simplify right side
    13,288.44x = 261,592,361.50
  5. Step 5: Solve for x
    x = 261,592,361.50/13,288.44
  6. Step 6: Final answer
    x = 19,685.71

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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.