Home / 13,450.64-18,554.29-8,071.65

Finding the Fourth Proportional to 13,450.64, 18,554.29 and 8,071.65

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Solution

The fourth proportional to 13,450.64, 18,554.29 and 8,071.65 is: 11,134.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,450.64 : 18,554.29 = 8,071.65 : x
  2. Step 2: Convert to fraction form
    13,450.64/18,554.29 = 8,071.65/x
  3. Step 3: Cross multiply
    13,450.64x = 18,554.29 × 8,071.65
  4. Step 4: Simplify right side
    13,450.64x = 149,763,734.88
  5. Step 5: Solve for x
    x = 149,763,734.88/13,450.64
  6. Step 6: Final answer
    x = 11,134.32

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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.