Home / 18,212.96-25,136.66-13,125.35

Finding the Fourth Proportional to 18,212.96, 25,136.66 and 13,125.35

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Solution

The fourth proportional to 18,212.96, 25,136.66 and 13,125.35 is: 18,114.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,212.96 : 25,136.66 = 13,125.35 : x
  2. Step 2: Convert to fraction form
    18,212.96/25,136.66 = 13,125.35/x
  3. Step 3: Cross multiply
    18,212.96x = 25,136.66 × 13,125.35
  4. Step 4: Simplify right side
    18,212.96x = 329,927,460.33
  5. Step 5: Solve for x
    x = 329,927,460.33/18,212.96
  6. Step 6: Final answer
    x = 18,114.98

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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.