Home / 12,089.28-18,141.60-5,163.84

Finding the Fourth Proportional to 12,089.28, 18,141.60 and 5,163.84

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Solution

The fourth proportional to 12,089.28, 18,141.60 and 5,163.84 is: 7,749.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,089.28 : 18,141.60 = 5,163.84 : x
  2. Step 2: Convert to fraction form
    12,089.28/18,141.60 = 5,163.84/x
  3. Step 3: Cross multiply
    12,089.28x = 18,141.60 × 5,163.84
  4. Step 4: Simplify right side
    12,089.28x = 93,680,319.74
  5. Step 5: Solve for x
    x = 93,680,319.74/12,089.28
  6. Step 6: Final answer
    x = 7,749.04

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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.