Home / 13,571.80-18,731.58-8,856.04

Finding the Fourth Proportional to 13,571.80, 18,731.58 and 8,856.04

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Solution

The fourth proportional to 13,571.80, 18,731.58 and 8,856.04 is: 12,222.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,571.80 : 18,731.58 = 8,856.04 : x
  2. Step 2: Convert to fraction form
    13,571.80/18,731.58 = 8,856.04/x
  3. Step 3: Cross multiply
    13,571.80x = 18,731.58 × 8,856.04
  4. Step 4: Simplify right side
    13,571.80x = 165,887,621.74
  5. Step 5: Solve for x
    x = 165,887,621.74/13,571.80
  6. Step 6: Final answer
    x = 12,222.96

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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.