Home / 13,593.42-18,749.43-13,136.21

Finding the Fourth Proportional to 13,593.42, 18,749.43 and 13,136.21

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Solution

The fourth proportional to 13,593.42, 18,749.43 and 13,136.21 is: 18,118.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,593.42 : 18,749.43 = 13,136.21 : x
  2. Step 2: Convert to fraction form
    13,593.42/18,749.43 = 13,136.21/x
  3. Step 3: Cross multiply
    13,593.42x = 18,749.43 × 13,136.21
  4. Step 4: Simplify right side
    13,593.42x = 246,296,356.11
  5. Step 5: Solve for x
    x = 246,296,356.11/13,593.42
  6. Step 6: Final answer
    x = 18,118.79

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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.