Home / 13,540.97-18,687.04-7,572.62

Finding the Fourth Proportional to 13,540.97, 18,687.04 and 7,572.62

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Solution

The fourth proportional to 13,540.97, 18,687.04 and 7,572.62 is: 10,450.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,540.97 : 18,687.04 = 7,572.62 : x
  2. Step 2: Convert to fraction form
    13,540.97/18,687.04 = 7,572.62/x
  3. Step 3: Cross multiply
    13,540.97x = 18,687.04 × 7,572.62
  4. Step 4: Simplify right side
    13,540.97x = 141,509,880.63
  5. Step 5: Solve for x
    x = 141,509,880.63/13,540.97
  6. Step 6: Final answer
    x = 10,450.50

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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.