Home / 13,539.33-18,679.29-8,162.94

Finding the Fourth Proportional to 13,539.33, 18,679.29 and 8,162.94

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Solution

The fourth proportional to 13,539.33, 18,679.29 and 8,162.94 is: 11,261.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,539.33 : 18,679.29 = 8,162.94 : x
  2. Step 2: Convert to fraction form
    13,539.33/18,679.29 = 8,162.94/x
  3. Step 3: Cross multiply
    13,539.33x = 18,679.29 × 8,162.94
  4. Step 4: Simplify right side
    13,539.33x = 152,477,923.51
  5. Step 5: Solve for x
    x = 152,477,923.51/13,539.33
  6. Step 6: Final answer
    x = 11,261.85

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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.