Home / 13,571.46-18,713.52-8,529.60

Finding the Fourth Proportional to 13,571.46, 18,713.52 and 8,529.60

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Solution

The fourth proportional to 13,571.46, 18,713.52 and 8,529.60 is: 11,761.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,571.46 : 18,713.52 = 8,529.60 : x
  2. Step 2: Convert to fraction form
    13,571.46/18,713.52 = 8,529.60/x
  3. Step 3: Cross multiply
    13,571.46x = 18,713.52 × 8,529.60
  4. Step 4: Simplify right side
    13,571.46x = 159,618,840.19
  5. Step 5: Solve for x
    x = 159,618,840.19/13,571.46
  6. Step 6: Final answer
    x = 11,761.36

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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.