Home / 18,312.36-27,468.66-12,111.54

Finding the Fourth Proportional to 18,312.36, 27,468.66 and 12,111.54

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Solution

The fourth proportional to 18,312.36, 27,468.66 and 12,111.54 is: 18,167.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,312.36 : 27,468.66 = 12,111.54 : x
  2. Step 2: Convert to fraction form
    18,312.36/27,468.66 = 12,111.54/x
  3. Step 3: Cross multiply
    18,312.36x = 27,468.66 × 12,111.54
  4. Step 4: Simplify right side
    18,312.36x = 332,687,774.34
  5. Step 5: Solve for x
    x = 332,687,774.34/18,312.36
  6. Step 6: Final answer
    x = 18,167.39

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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.