Home / 14,388.14-21,576.53-6,990.41

Finding the Fourth Proportional to 14,388.14, 21,576.53 and 6,990.41

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Solution

The fourth proportional to 14,388.14, 21,576.53 and 6,990.41 is: 10,482.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,388.14 : 21,576.53 = 6,990.41 : x
  2. Step 2: Convert to fraction form
    14,388.14/21,576.53 = 6,990.41/x
  3. Step 3: Cross multiply
    14,388.14x = 21,576.53 × 6,990.41
  4. Step 4: Simplify right side
    14,388.14x = 150,828,648.24
  5. Step 5: Solve for x
    x = 150,828,648.24/14,388.14
  6. Step 6: Final answer
    x = 10,482.85

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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.