Home / 13,942.80-19,240.54-8,637.50

Finding the Fourth Proportional to 13,942.80, 19,240.54 and 8,637.50

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Solution

The fourth proportional to 13,942.80, 19,240.54 and 8,637.50 is: 11,919.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,942.80 : 19,240.54 = 8,637.50 : x
  2. Step 2: Convert to fraction form
    13,942.80/19,240.54 = 8,637.50/x
  3. Step 3: Cross multiply
    13,942.80x = 19,240.54 × 8,637.50
  4. Step 4: Simplify right side
    13,942.80x = 166,190,190.76
  5. Step 5: Solve for x
    x = 166,190,190.76/13,942.80
  6. Step 6: Final answer
    x = 11,919.43

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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.