Home / 13,372.77-18,450.25-7,706.75

Finding the Fourth Proportional to 13,372.77, 18,450.25 and 7,706.75

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Solution

The fourth proportional to 13,372.77, 18,450.25 and 7,706.75 is: 10,632.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.77 : 18,450.25 = 7,706.75 : x
  2. Step 2: Convert to fraction form
    13,372.77/18,450.25 = 7,706.75/x
  3. Step 3: Cross multiply
    13,372.77x = 18,450.25 × 7,706.75
  4. Step 4: Simplify right side
    13,372.77x = 142,191,478.38
  5. Step 5: Solve for x
    x = 142,191,478.38/13,372.77
  6. Step 6: Final answer
    x = 10,632.91

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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.