Home / 13,687.04-20,533.12-4,451.84

Finding the Fourth Proportional to 13,687.04, 20,533.12 and 4,451.84

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Solution

The fourth proportional to 13,687.04, 20,533.12 and 4,451.84 is: 6,678.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,687.04 : 20,533.12 = 4,451.84 : x
  2. Step 2: Convert to fraction form
    13,687.04/20,533.12 = 4,451.84/x
  3. Step 3: Cross multiply
    13,687.04x = 20,533.12 × 4,451.84
  4. Step 4: Simplify right side
    13,687.04x = 91,410,164.94
  5. Step 5: Solve for x
    x = 91,410,164.94/13,687.04
  6. Step 6: Final answer
    x = 6,678.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.