Home / 13,089.72-19,622.87-4,763.87

Finding the Fourth Proportional to 13,089.72, 19,622.87 and 4,763.87

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Solution

The fourth proportional to 13,089.72, 19,622.87 and 4,763.87 is: 7,141.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,089.72 : 19,622.87 = 4,763.87 : x
  2. Step 2: Convert to fraction form
    13,089.72/19,622.87 = 4,763.87/x
  3. Step 3: Cross multiply
    13,089.72x = 19,622.87 × 4,763.87
  4. Step 4: Simplify right side
    13,089.72x = 93,480,771.22
  5. Step 5: Solve for x
    x = 93,480,771.22/13,089.72
  6. Step 6: Final answer
    x = 7,141.54

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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.