Home / 13,452.96-18,565.70-11,211.09

Finding the Fourth Proportional to 13,452.96, 18,565.70 and 11,211.09

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Solution

The fourth proportional to 13,452.96, 18,565.70 and 11,211.09 is: 15,471.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,452.96 : 18,565.70 = 11,211.09 : x
  2. Step 2: Convert to fraction form
    13,452.96/18,565.70 = 11,211.09/x
  3. Step 3: Cross multiply
    13,452.96x = 18,565.70 × 11,211.09
  4. Step 4: Simplify right side
    13,452.96x = 208,141,607.94
  5. Step 5: Solve for x
    x = 208,141,607.94/13,452.96
  6. Step 6: Final answer
    x = 15,471.80

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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.