Home / 13,633.50-18,806.55-7,967.04

Finding the Fourth Proportional to 13,633.50, 18,806.55 and 7,967.04

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Solution

The fourth proportional to 13,633.50, 18,806.55 and 7,967.04 is: 10,990.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,633.50 : 18,806.55 = 7,967.04 : x
  2. Step 2: Convert to fraction form
    13,633.50/18,806.55 = 7,967.04/x
  3. Step 3: Cross multiply
    13,633.50x = 18,806.55 × 7,967.04
  4. Step 4: Simplify right side
    13,633.50x = 149,832,536.11
  5. Step 5: Solve for x
    x = 149,832,536.11/13,633.50
  6. Step 6: Final answer
    x = 10,990.03

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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.