Home / 14,022.72-21,064.62-8,478.68

Finding the Fourth Proportional to 14,022.72, 21,064.62 and 8,478.68

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Solution

The fourth proportional to 14,022.72, 21,064.62 and 8,478.68 is: 12,736.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,022.72 : 21,064.62 = 8,478.68 : x
  2. Step 2: Convert to fraction form
    14,022.72/21,064.62 = 8,478.68/x
  3. Step 3: Cross multiply
    14,022.72x = 21,064.62 × 8,478.68
  4. Step 4: Simplify right side
    14,022.72x = 178,600,172.30
  5. Step 5: Solve for x
    x = 178,600,172.30/14,022.72
  6. Step 6: Final answer
    x = 12,736.49

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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.