Home / 13,343.53-20,015.27-12,531.61

Finding the Fourth Proportional to 13,343.53, 20,015.27 and 12,531.61

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Solution

The fourth proportional to 13,343.53, 20,015.27 and 12,531.61 is: 18,797.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343.53 : 20,015.27 = 12,531.61 : x
  2. Step 2: Convert to fraction form
    13,343.53/20,015.27 = 12,531.61/x
  3. Step 3: Cross multiply
    13,343.53x = 20,015.27 × 12,531.61
  4. Step 4: Simplify right side
    13,343.53x = 250,823,444.99
  5. Step 5: Solve for x
    x = 250,823,444.99/13,343.53
  6. Step 6: Final answer
    x = 18,797.39

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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.