Home / 18,215.21-25,136.50-10,257.27

Finding the Fourth Proportional to 18,215.21, 25,136.50 and 10,257.27

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Solution

The fourth proportional to 18,215.21, 25,136.50 and 10,257.27 is: 14,154.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215.21 : 25,136.50 = 10,257.27 : x
  2. Step 2: Convert to fraction form
    18,215.21/25,136.50 = 10,257.27/x
  3. Step 3: Cross multiply
    18,215.21x = 25,136.50 × 10,257.27
  4. Step 4: Simplify right side
    18,215.21x = 257,831,795.53
  5. Step 5: Solve for x
    x = 257,831,795.53/18,215.21
  6. Step 6: Final answer
    x = 14,154.75

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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.