Home / 13,392.05-20,087.87-4,509.32

Finding the Fourth Proportional to 13,392.05, 20,087.87 and 4,509.32

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Solution

The fourth proportional to 13,392.05, 20,087.87 and 4,509.32 is: 6,763.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,392.05 : 20,087.87 = 4,509.32 : x
  2. Step 2: Convert to fraction form
    13,392.05/20,087.87 = 4,509.32/x
  3. Step 3: Cross multiply
    13,392.05x = 20,087.87 × 4,509.32
  4. Step 4: Simplify right side
    13,392.05x = 90,582,510.96
  5. Step 5: Solve for x
    x = 90,582,510.96/13,392.05
  6. Step 6: Final answer
    x = 6,763.90

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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.