Home / 13,731.94-18,944.72-8,957.50

Finding the Fourth Proportional to 13,731.94, 18,944.72 and 8,957.50

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Solution

The fourth proportional to 13,731.94, 18,944.72 and 8,957.50 is: 12,357.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.94 : 18,944.72 = 8,957.50 : x
  2. Step 2: Convert to fraction form
    13,731.94/18,944.72 = 8,957.50/x
  3. Step 3: Cross multiply
    13,731.94x = 18,944.72 × 8,957.50
  4. Step 4: Simplify right side
    13,731.94x = 169,697,270.84
  5. Step 5: Solve for x
    x = 169,697,270.84/13,731.94
  6. Step 6: Final answer
    x = 12,357.85

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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.