Home / 13,545.44-18,693.60-8,240.48

Finding the Fourth Proportional to 13,545.44, 18,693.60 and 8,240.48

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Solution

The fourth proportional to 13,545.44, 18,693.60 and 8,240.48 is: 11,372.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545.44 : 18,693.60 = 8,240.48 : x
  2. Step 2: Convert to fraction form
    13,545.44/18,693.60 = 8,240.48/x
  3. Step 3: Cross multiply
    13,545.44x = 18,693.60 × 8,240.48
  4. Step 4: Simplify right side
    13,545.44x = 154,044,236.93
  5. Step 5: Solve for x
    x = 154,044,236.93/13,545.44
  6. Step 6: Final answer
    x = 11,372.41

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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.