Home / 13,412.46-20,118.69-4,647.38

Finding the Fourth Proportional to 13,412.46, 20,118.69 and 4,647.38

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Solution

The fourth proportional to 13,412.46, 20,118.69 and 4,647.38 is: 6,971.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412.46 : 20,118.69 = 4,647.38 : x
  2. Step 2: Convert to fraction form
    13,412.46/20,118.69 = 4,647.38/x
  3. Step 3: Cross multiply
    13,412.46x = 20,118.69 × 4,647.38
  4. Step 4: Simplify right side
    13,412.46x = 93,499,103.47
  5. Step 5: Solve for x
    x = 93,499,103.47/13,412.46
  6. Step 6: Final answer
    x = 6,971.06

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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.