Home / 13,238.44-18,265.54-8,528.84

Finding the Fourth Proportional to 13,238.44, 18,265.54 and 8,528.84

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Solution

The fourth proportional to 13,238.44, 18,265.54 and 8,528.84 is: 11,767.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,238.44 : 18,265.54 = 8,528.84 : x
  2. Step 2: Convert to fraction form
    13,238.44/18,265.54 = 8,528.84/x
  3. Step 3: Cross multiply
    13,238.44x = 18,265.54 × 8,528.84
  4. Step 4: Simplify right side
    13,238.44x = 155,783,868.17
  5. Step 5: Solve for x
    x = 155,783,868.17/13,238.44
  6. Step 6: Final answer
    x = 11,767.54

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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.